ATTO Software Downloads

The following are current versions of ATTO drivers and software.

Click here for archived ATTO drivers and software. Drivers and software for discontinued ATTO products are here.

If a driver or software package does not appear on this list, it may still be available by contacting ATTO Tech Support.

The current sort appears below. SEARCH the sorted file listing using the search box (when each sort filter is set to “all”, all files are searched).

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Title
ATTO ConfigTool Linux

1 file
ConfigTool version
v4.4125.19 MB2024-06-07
The Legacy ATTO ConfigTool offers a graphical user interface to easily monitor and manage ATTO host bus adapter settings for specialized applications. It can be used to view the drivers and flash files currently in use, easily update the firmware, collect diagnostic logs and configure adapter settings.

ATTO ConfigTool requires a supported ATTO Product. The HBA drivers and firmware are not included with the utility.
ATTO ConfigTool LiveISO

2 files
ConfigTool LiveISO Version
v2512191.15 GB
Product Release Notes
149.25 KB2025-12-19
The ATTO ConfigTool LiveISO is a bootable system image used to update flash bundles and access diagnostic utilities when using open-source ATTO drivers, alongside more robust adapter management and monitoring tools. A full description is available in the Utilities Manual.
ATTO ConfigTool macOS

2 files
ConfigTool version:
v4.41117.07 MB
Product Release Notes
342.42 KB2024-07-17
The Legacy ATTO ConfigTool offers a graphical user interface to easily monitor and manage ATTO host bus adapter settings for specialized applications. It can be used to view the drivers and flash files currently in use, easily update the firmware, collect diagnostic logs and configure adapter settings.

ATTO ConfigTool requires a supported ATTO Product. The HBA drivers and firmware are not included with the utility.
ATTO ConfigTool Windows

1 file
ConfigTool version:
v4.410 KB2024-06-07
The Legacy ATTO ConfigTool offers a graphical user interface to easily monitor and manage ATTO host bus adapter settings for specialized applications. It can be used to view the drivers and flash files currently in use, easily update the firmware, collect diagnostic logs and configure adapter settings.

ATTO ConfigTool requires a supported ATTO Product. The HBA drivers and firmware are not included with the utility.
ATTO Disk Benchmark macOS

2 files
Disk Benchmark version
v1.010 KB
Product Release Notes
0 KB
As the industry's leading provider of high-performance storage & network connectivity products, ATTO has created a widely-accepted Disk Benchmark for macOS to help measure storage system performance. As one of the top tools in the industry Disk Benchmark identifies performance in hard drives, solid state drives and storage systems. Use the tool that top drive manufacturers use to build and test drives to tune your storage system for optimal performance.
ATTO Disk Benchmark Windows

2 files
Benchmark Version
v5.00.23.48 MB
Product Release Notes
109.31 KB2025-08-14
As the industry's leading provider of high-performance storage & network connectivity products, ATTO has created a widely-accepted Disk Benchmark for Windows to help measure storage system performance. As one of the top tools in the industry Disk Benchmark identifies performance in hard drives, solid state drives and storage systems. Use the tool that top drive manufacturers use to build and test drives to tune your storage system for optimal performance.
ATTO Networking Suite Linux

2 files
Networking Suite Version
v2.01396.02 MB
Product Release Notes
217.9 KB2026-02-09
Installing ATTO Networking Suite includes the relevant Linux driver, ATTO 360 Networking utility and ATTOview exporter.

ATTO 360 Networking is an all-purpose tool for Ethernet network optimization featuring performance tuning, monitoring, and diagnostic tools that deliver the best-performing and most efficient storage networks.

Supports the following Linux Distributions: RHEL 8 9 & 10, Rocky Linux 8 9 & 10, and Ubuntu 22.04 LTS & 24.04LTS.
ATTO Networking Suite macOS

2 files
Networking Suite Version
v2.01165.26 MB
Product Release Notes
181.76 KB2026-02-09
ATTO 360 Networking is an all-purpose tool for Ethernet network optimization featuring performance tuning, monitoring, and diagnostic tools that deliver the best-performing and most efficient storage networks.

Installing ATTO Networking Suite includes the relevant macOS device driver, ATTO360 Networking utility, ATTOview exporters and the Fan Control application.

Supports the following macOS Versions: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

All Fast Frame 4 products supported in a MacPro or Third Party Thunderbolt 5 chassis.
ATTO Networking Suite Windows

2 files
Networking Suite Version
v2.01333.35 MB
Product Release Notes
216.98 KB2026-02-09
Installing ATTO Networking Suite includes the relevant Windows driver and ATTO360 Networking utility.

Note: For build 14393 and earlier of Windows 10 please contact ATTO Support.

ATTO360 Networking is an all-purpose tool for Ethernet network optimization featuring performance tuning, monitoring, and diagnostic tools that deliver the best-performing and most efficient storage networks.

Supports the following Windows Versions: Windows 10 & 11, Windows Server 2022 & 2025
ATTO360 Storage Linux

2 files
ATTO360 Storage Version
v2.01102.82 MB
Product Release Notes
207.13 KB2026-02-09
A brand new ConfigTool, ATTO360 Storage combines all the features of our popular management application with the powerful benefits found in our ATTO360 software.

Easily monitor and configure ATTO adapter settings, instantly optimize with 1 click tuning profiles, and lean on ATTO ExpertAI to eliminate bottlenecks and costly downtime.
ATTO360 Storage macOS

2 files
ATTO360 Storage Version
v2.01143.13 MB
Product Release Notes
206.93 KB2026-02-09
A brand new ConfigTool, ATTO360 Storage combines all the features of our popular management application with the powerful benefits found in our ATTO360 software.

Easily monitor and configure ATTO adapter settings, instantly optimize with 1 click tuning profiles, and lean on ATTO ExpertAI to eliminate bottlenecks and costly downtime.
ATTO360 Storage Windows

2 files
ATTO360 Storage Version
v2.01148.56 MB
Product Release Notes
206.73 KB2026-02-09
A brand new ConfigTool, ATTO360 Storage combines all the features of our popular management application with the powerful benefits found in our ATTO360 software.

Easily monitor and configure ATTO adapter settings, instantly optimize with 1 click tuning profiles, and lean on ATTO ExpertAI to eliminate bottlenecks and costly downtime.
Celerity 16/32/64Gb Fibre Channel Driver FreeBSD

2 files
Driver Version
v2.041.24 MB
Product Release Notes
209.24 KB2025-09-08
Proprietary FreeBSD device driver for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

Supports the following FreeBSD versions: FreeBSD 13 & 14.
Celerity 16/32/64Gb Fibre Channel Driver illumos

2 files
Driver Version
v1.101.09 MB
Product Release Notes
159.64 KB2025-09-25
Proprietary illumos device driver for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

Supports the following versions: OpenIndiana, OmniOS, NexentaStor 4 & 5, NestOS.
Celerity 16/32/64Gb Fibre Channel Driver Linux

2 files
Driver Version
v2.171.01 MB
Product Release Notes
252.65 KB2026-02-10
Proprietary Linux device driver for 16/32/64Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
Celerity 16/32/64Gb Fibre Channel Driver macOS – DEXT

2 files
Driver Version
v1.033.71 MB
Product Release Notes
125.36 KB2026-02-10
macOS device dext driver for 16/32/64Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
Celerity 16/32/64Gb Fibre Channel Driver macOS – KEXT

2 files
Driver Version
v3.162.08 MB
Product Release Notes
248.87 KB2026-02-10
macOS device driver for 16/32/64Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO kext driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
Celerity 16/32/64Gb Fibre Channel Driver Windows

2 files
Driver Version
v3.023.93 MB
Product Release Notes
251.59 KB2026-02-10
Windows device driver for 16/32/64Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 and Windows Server 2016, 2019, 2022 & 2025.
Celerity 16/32/64Gb Fibre Channel Flash Bundle FreeBSD

2 files
Flash Bundle Version
v09/19/202511.76 MB
Product Release Notes
151.8 KB2025-10-02
FreeBSD flash bundle for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel Flash Bundle illumos

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
illumos flash bundle for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel Flash Bundle Linux

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Linux flash bundle for Celerity 16/32/64Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel Flash Bundle macOS

2 files
Flash Bundle Version
v09/19/202531.76 MB
Product Release Notes
151.8 KB2025-10-02
macOS flash bundle for Celerity 16/32/64Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel Flash Bundle VMware

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
VMware flash bundle for Celerity 16/32/64Gb Fibre Channel adapters.

ATTO recommends our customers use the latest drivers available. If you require the latest version, please download them at:

https://www.vmware.com/resources/compatibility/search.php?deviceCategory=io

Select your version of ESXi in the Product Release Version, select ATTO Technology from the Brand list, and within the IO Device type field select the proper protocol.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel Flash Bundle Windows

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Windows flash bundle for Celerity 16/32/64Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E.
Celerity 16/32/64Gb Fibre Channel MultiPath Director Driver Linux

2 files
Driver Version
v2.17-MP1.31 MB
Product Release Notes
271.75 KB2026-02-10
ATTO MultiPath Director is a proprietary driver that enables Linux hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
Celerity 16/32/64Gb Fibre Channel MultiPath Director Driver macOS – DEXT

2 files
Driver Version
v1.03-MP3.93 MB
Product Release Notes
125.32 KB2026-02-10
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 26 Tahoe.
Celerity 16/32/64Gb Fibre Channel MultiPath Director Driver macOS – KEXT

2 files
Driver Version
v3.16-MP2.76 MB
Product Release Notes
282.29 KB2026-02-10
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO kext driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
Celerity 8Gb Fibre Channel Driver Linux

2 files
Driver Version
v2.29.4858.09 KB
Product Release Notes
268.96 KB2025-10-23
Proprietary Linux device driver for 8Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9  & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15 & 16, SUSE Linux Enterprise Server 15 & 16, Ubuntu 22.04 LTS & 24.04 LTS.
Celerity 8Gb Fibre Channel Driver macOS

2 files
Driver version
v3.372.16 MB
Product Release Notes
284.29 KB2024-06-24
macOS device driver for 8Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
Celerity 8Gb Fibre Channel Driver Windows

2 files
Driver version
v2.133.27 MB
Product Release Notes
204.27 KB2024-11-07
Windows device driver for 8Gb Celerity Fibre Channel Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 and Windows Server 2016, 2019, 2022 & 2025.
Celerity 8Gb Fibre Channel Flash Bundle Linux

2 files
Flash Bundle version
v04/06/2018687.18 KB
Product Release Notes
127.32 KB2021-04-28
Linux flash bundle for Celerity 8Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-81EN, Celerity FC-82EN and Celerity FC-84EN.

 
Celerity 8Gb Fibre Channel Flash Bundle macOS

2 files
Flash Bundle version
v04/06/20181.37 MB
Product Release Notes
127.32 KB2021-04-28
macOS flash bundle for Celerity 8Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-81EN, Celerity FC-82EN and Celerity FC-84EN.
Celerity 8Gb Fibre Channel Flash Bundle Windows

2 files
Flash Bundle version
v04/06/2018687.21 KB
Product Release Notes
127.32 KB2021-04-28
Windows flash bundle for Celerity 8Gb Fibre Channel adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: Celerity FC-81EN, Celerity FC-82EN and Celerity FC-84EN.
Celerity 8Gb Fibre Channel Multi-Path Director Driver macOS

2 files
Multi-Path Director version
v3.37MP2.83 MB
Product Release Notes
328.15 KB2024-07-09
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
Celerity 8Gb Fibre Channel MultiPath Director Driver Linux

2 files
Driver Version
v2.29.4-MP1.14 MB
Product Release Notes
302.99 KB2025-10-23
ATTO MultiPath Director is a proprietary driver that enables Linux hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9  & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15 & 16, SUSE Linux Enterprise Server 15 & 16, Ubuntu 22.04 LTS & 24.04 LTS.
ExpressNVM Driver Linux

2 files
Driver Version
v1.04.1310.2 MB
Product Release Notes
204.93 KB2025-12-12
Linux management driver for ExpressNVM S4FF & S48F Switch Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, SUSE Linux Enterprise Server 15 & 16, openSUSE LEAP 15 & 16, Ubuntu 22.04 LTS & 24.04 LTS.
ExpressNVM Driver Windows

2 files
Driver Version
v1.0413.56 MB
Product Release Notes
199.54 KB2025-12-12
Windows management driver for ExpressNVM S4FF & S48F Switch Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022, 2025.
ExpressNVM Flash Bundle Linux

2 files
Flash Bundle Version
v12/12/20251.05 MB
Product Release Notes
120.75 KB2025-12-12
Linux flash bundle for ExpressNVM S4FF & S48F Switch Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ENVM-S48F and ENVM-S4FF.
ExpressNVM Flash Bundle Windows

2 files
Flash Bundle Version
v12/12/20251.05 MB
Product Release Notes
120.75 KB2025-12-12
Windows flash bundle for ExpressNVM S4FF & S48F Switch Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ENVM-S48F and ENVM-S4FF.
ExpressSAS 12Gb GT Driver FreeBSD

2 files
Driver Version
v1.041.34 MB
Product Release Notes
172.43 KB2025-12-22
Proprietary FreeBSD device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following FreeBSD versions: FreeBSD 13 & 14.
ExpressSAS 12Gb GT Driver illumos

2 files
Driver Version
v1.041.04 MB
Product Release Notes
132.47 KB2025-12-22
Proprietary illumos device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following illumos versions: OpenIndiana, OmniOS, NexentaStor 4, NexentaStor 5, NestOS.
ExpressSAS 12Gb GT Driver Linux

2 files
Driver Version
v1.12.121.18 MB
Product Release Notes
188.82 KB2026-01-27
Proprietary Linux device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following Linux Distributions: RHEL 8, 9, 10, Rocky Linux 8, 9, 10, openSUSE LEAP 15, 16, SLES 15, 16 & Ubuntu 22.04, 24.04.
ExpressSAS 12Gb GT Driver macOS – Dext

2 files
Driver Version
v1.01.23.13 MB
Product Release Notes
123.19 KB2025-12-22
macOS Dext driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ExpressSAS 12Gb GT Driver macOS – Kext

2 files
Driver Version
v1.11.32.07 MB
Product Release Notes
201.05 KB2025-12-22
macOS Kext driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
ExpressSAS 12Gb GT Driver Windows

2 files
Driver Version
v1.104.31 MB
Product Release Notes
179.84 KB2025-12-22
Windows device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11, Windows Server 2016, 2019, 2022 & 2025.
ExpressSAS 12Gb GT Flash Bundle FreeBSD

2 files
Flash Bundle Version
v2512125.05 MB
Product Release Notes
121.31 KB2025-12-17
FreeBSD flash bundle for ExpressSAS 12Gb GT Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT Flash Bundle illumos

2 files
Flash Bundle Version
v2512126.15 MB
Product Release Notes
121.31 KB2025-12-17
illumos flash bundle for ExpressSAS 12Gb GT Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT Flash Bundle Linux

2 files
Flash Bundle Version
v2512126.15 MB
Product Release Notes
121.31 KB2025-12-17
Linux flash bundle for ExpressSAS 12Gb GT adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT Flash Bundle macOS

2 files
Flash Bundle Version
v2512126.23 MB
Product Release Notes
121.31 KB2025-12-17
macOS flash bundle for ExpressSAS 12Gb GT adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT Flash Bundle VMware

2 files
Flash Bundle Version
v2512126.15 MB
Product Release Notes
121.31 KB2025-12-17
VMware flash bundle for ExpressSAS 12Gb GT Host Bus adapters.

ATTO recommends our customers use the latest drivers available. If you require the latest version, please download them at:

https://www.vmware.com/resources/compatibility/search.php?deviceCategory=io

Select your version of ESXi in the Product Release Version, select ATTO Technology from the Brand list, and within the IO Device type field select the proper protocol.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT Flash Bundle Windows

2 files
Flash Bundle Version
v2512126.15 MB
Product Release Notes
121.31 KB2025-12-17
Windows flash bundle for ExpressSAS 12Gb GT adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H1280GT, ExpressSAS H1208GT, ExpressSAS, H1244GT, ExpressSAS H12F0GT & ExpressSAS H120FGT.
ExpressSAS 12Gb GT WHQL Driver Windows 10

1 file
WHQL Driver version
v1.0013.51 MB
Windows Hardware Quality Labs (WHQL) driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows 10
ExpressSAS 12Gb GT WHQL Driver Windows 2019

1 file
WHQL Driver version
v1.0013.51 MB
Windows Hardware Quality Labs (WHQL) driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows Server 2019
ExpressSAS 24Gb Driver FreeBSD

2 files
Driver version
v1.011.28 MB
Product Release Notes
146.62 KB2025-02-03
Proprietary FreeBSD device driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following FreeBSD versions: FreeBSD 13 (minimum 13.1), FreeBSD 14 (minimum 14.0).

More information can be found in the ATTO ExpressSAS 24Gb SAS Adapter FreeBSD ReadMe file downloaded with the driver.
ExpressSAS 24Gb Driver illumos

2 files
Driver Version:
v1.01987.14 KB2025-02-03
Product Release Notes
145.67 KB
Proprietary illumos device driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following illumos versions: OpenIndiana, OmniOS, NexentaStor 4, NexentaStor 5, NestOS.

More information can be found in the ATTO ExpressSAS 24Gb SAS Adapter illumos ReadMe file downloaded with the driver.
ExpressSAS 24Gb Driver Linux

2 files
Driver version
v1.011.17 MB
Product Release Notes
147.84 KB2025-02-03
Proprietary Linux device driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8 & 9, Rocky Linux 8 & 9, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04.

More information can be found in the ATTO ExpressSAS 24Gb SAS Adapter Linux ReadMe file downloaded with the driver.
ExpressSAS 24Gb Driver macOS – Dext

2 files
Driver Version
v1.01.23.69 MB
Product Release Notes
121.01 KB2026-01-23
macOS Dext driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ExpressSAS 24Gb Driver macOS – Kext

2 files
Driver Version
v1.03.32.32 MB
Product Release Notes
161.62 KB2026-01-23
macOS Kext driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
ExpressSAS 24Gb Driver Windows

2 files
Driver version
v1.014.3 MB
Product Release Notes
146.22 KB2025-02-03
Windows device driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022.
ExpressSAS 24Gb Flash Bundle FreeBSD

2 files
Flash Bundle version
v01/30/20253.8 MB
Product Release Notes
107.25 KB2025-02-03
FreeBSD flash bundle for ExpressSAS 24Gb Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H24F0, ExpressSAS H240F & ExpressSAS H240N.
ExpressSAS 24Gb Flash Bundle illumos

2 files
Flash Bundle Version
v01/30/202510.84 MB
Product Release Notes
107.25 KB2025-02-03
illumos flash bundle for ExpressSAS 24Gb Host Bus Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H24F0, ExpressSAS H240F & ExpressSAS H240N.
ExpressSAS 24Gb Flash Bundle Linux

2 files
Flash Bundle version
v01/30/202510.84 MB
Product Release Notes
107.25 KB2025-02-03
Linux flash bundle for ExpressSAS 24Gb adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H24F0, ExpressSAS H240F & ExpressSAS H240N.
ExpressSAS 24Gb Flash Bundle macOS

2 files
Flash Bundle version
v01/30/202511.75 MB
Product Release Notes
107.25 KB2025-02-03
macOS flash bundle for ExpressSAS 24Gb adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H24F0, ExpressSAS H240F & ExpressSAS H240N.
ExpressSAS 24Gb Flash Bundle Windows

2 files
Flash Bundle Version
v01/30/202510.84 MB
Product Release Notes
107.25 KB2025-02-03
Windows flash bundle for ExpressSAS 24Gb adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ExpressSAS H24F0, ExpressSAS H240F & ExpressSAS H240N.
FastFrame 1 10GbE NIC Driver Linux

1 file
Driver version
v5.20.9652.93 KB2024-06-10
Linux device driver for FastFrame 1 NICs.
FastFrame 1 10GbE NIC VMware Software

1 file
Software Version
v3.21.4.30 KB
The below file may be installed directly on an ESX server from the command line, or through the VMware Update Manager (VUM).
FastFrame 1 10GbE NIC Windows 10 Driver

1 file
Driver version
v29.324.69 MB
Windows device driver for FastFrame 1 10GbE SmartNICs. Which includes: FastFrame NS-12 & FastFrame NT-12.

Supports the following Windows Versions: Windows 10.
FastFrame 1 10GbE NIC Windows 11 Driver

1 file
Driver version
v29.124.68 MB
Windows device driver for FastFrame 1 10GbE SmartNICs. Which includes: FastFrame NS-12 & FastFrame NT-12.

Supports the following Windows Versions: Windows 11.
FastFrame 1 10GbE SmartNIC macOS Driver

2 files
Driver version
v3.16.10 KB
Product Release Notes
205.3 KB2022-04-27
macOS device driver for FastFrame 1 10GbE SmartNICs. Supported Products can be found in the ReadMe file included with driver.

Supports the following macOS Versions: macOS 14 Sonoma, macOS 13 Ventura, macOS 12 Monterey, macOS 11 Big Sur, macOS 10.15 Catalina, macOS 10.14 Mojave, macOS 10.13 High Sierra & macOS 10.12 Sierra.


Note: When installing an ATTO driver on macOS, you may get a pop-up message warning: "this is a system extension that will be incompatible with a future version of macOS.

There is no need to be concerned. ATTO currently uses high-performance Kernel Extension Drivers. At some point Apple intends to deprecate support for kexts and only support dext drivers. At that time ATTO will update all drivers to dext. All current ATTO host adapters and Thunderbolt devices will natively support the new dext drivers. In the meantime, we will continue to provide the highest-performing drivers possible.
FastFrame 3 10/25/40/50/100GbE SmartNIC FreeBSD Driver

1 file
Driver version
v3.4.20 KB2018-10-03
ATTO recommends our customers use the latest "in-box" drivers available within the kernel. If you require the latest version, please download here.

Note: Compatible with FastFrame 3 N322, N351, and N352 only
FastFrame 3 10/25Gb SmartNIC Flash Bundle Windows

2 files
Flash Bundle version
v32.10108.88 MB
Product Release Notes
121.35 KB2024-03-14
Windows flash bundle 32.1010 for FastFrame 3 25GbE & 10GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N322, TLNS-3252, TLN3-3102 & TLN3-3102T.
FastFrame 3 10/25GbE SmartNIC Flash Bundle macOS

2 files
Flash Bundle version
v32.10108.87 MB
Product Release Notes
121.35 KB2024-03-14
macOS flash bundle 32.1010 for FastFrame 3 25GbE & 10GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N322, TLNS-3252, TLN3-3102 & TLN3-3102T.
FastFrame 3 100Gb SmartNIC Flash Bundle Windows

2 files
Flash Bundle version
v35.30060 KB
Product Release Notes
0 KB2024-03-14
Windows flash bundle 35.3006 for FastFrame 3 100GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N311, FFRM-N312.
FastFrame 3 100GbE SmartNIC Flash Bundle Linux

2 files
Flash Bundle Version
v35.30063.94 MB
Product Release Notes
0 KB2024-03-14
Linux flash bundle for FastFrame 3 100GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N311, FFRM-N312.
FastFrame 3 100GbE SmartNIC Flash Bundle macOS

2 files
Flash Bundle version
v35.30064.87 MB
Product Release Notes
119.88 KB2024-03-14
macOS flash bundle 35.3006 for FastFrame 3 100GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N311, FFRM-N312.
FastFrame 3 25GbE & 10GbE SmartNIC Flash Bundle Linux

2 files
Flash Bundle Version
v32.10108.88 MB
Product Release Notes
121.35 KB2024-03-14
Linux flash bundle for FastFrame 3 25GbE & 10GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N322.
FastFrame 3 50GbE SmartNIC Flash Bundle Linux

1 file
Flash Bundle Version
v31.101412.01 MB
macOS flash bundle 31.1014 for FastFrame 3 50GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N352 & FFRM-N351.
FastFrame 3 50GbE SmartNIC Flash Bundle macOS

1 file
Flash Bundle version
v31.101412.89 MB
macOS flash bundle 31.1014 for FastFrame 3 50GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N352 & FFRM-N351.
FastFrame 3 50GbE SmartNIC Flash Bundle Windows

1 file
Flash Bundle version
v31.101412.01 MB
macOS flash bundle 31.1014 for FastFrame 3 50GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N352 & FFRM-N351.
FastFrame 4 10/25/40/50/100GbE SmartNIC Flash Bundle Linux

2 files
Flash Bundle Version
v235.1.160.015.41 MB
Product Release Notes
123.81 KB2025-12-08
Linux flash bundle FastFrame 4 SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N422, FFRM-N424 FFRM-N4S2, FFRM-N4T2 & FFRM-N412.
FastFrame 4 10/25/40/50/100GbE SmartNIC Flash Bundle macOS

2 files
Flash Bundle Version
v235.1.160.015.47 MB
Product Release Notes
123.81 KB2025-12-08
macOS flash bundle for FastFrame 4 100GbE SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: All Fast Frame 4 products supported in a MacPro or Third Party Thunderbolt 5 chassis

 
FastFrame 4 10/25/40/50/100GbE SmartNIC Flash Bundle Windows

2 files
Flash Bundle Version
v235.1.160.015.41 MB
Product Release Notes
123.81 KB2025-12-08
Windows flash bundle for FastFrame 4 SmartNICs.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N422, FFRM-N424, FFRM-N4S2, FFRM-N4T2 & FFRM-N412.
MultiPath Director Windows

2 files
MultiPath Director Version
v2.262.24 MB
Product Release Notes
255.22 KB2025-07-16
ATTO MultiPath Director is a proprietary driver that enables Windows hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022 & 2025.

Requires the latest Windows Device Driver to also be installed alongside the MultiPath Director.
QuickNAV Utility Linux

2 files
QuickNAV version
v3.900 KB
Product Release Notes
0 KB2020-03-03
In order to configure an ATTO appliance using the built-in XstreamVIEW configuration utility, you must first identify the IP address to be used for management of the appliance.

QuickNAV is a utility that can be used to identify your ATTO appliance on a network.
QuickNAV Utility Windows

2 files
QuickNAV version
v3.9011.61 MB
Product Release Notes
0 KB2020-01-28
In order to configure an ATTO appliance using the built-in XstreamVIEW configuration utility, you must first identify the IP address to be used for management of the appliance.

QuickNAV is a utility that can be used to identify your ATTO appliance on a network.
ThunderLink FC 3162, FC 3322 Driver Linux

2 files
Driver Version
v2.16.6984.7 KB
Product Release Notes
251.45 KB2026-01-27
Proprietary Linux device driver for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
ThunderLink FC 3162, FC 3322 Driver macOS – Dext

2 files
Driver Version
v1.02.13.53 MB
Product Release Notes
160.32 KB2026-01-27
macOS dext device driver for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ThunderLink FC 3162, FC 3322 Driver macOS – Kext

2 files
Driver Version
v3.152.47 MB
Product Release Notes
247 KB2026-01-27
macOS device driver for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers or kexts (also known as System Extensions) to provide the highest-performing drivers possible.
ThunderLink FC 3162, FC 3322 Driver Windows

2 files
Driver Version
v3.013.87 MB
Product Release Notes
250.24 KB2025-10-02
Windows device driver for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Supports the following versions of Windows: Windows 10, 11 and Windows Server 2019, 2022 & 2025.
ThunderLink FC 3162, FC 3322 Flash Bundle Linux

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Linux flash bundle for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-3162, TLFC-3322.
ThunderLink FC 3162, FC 3322 Flash Bundle macOS

2 files
Flash Bundle Version
v09/19/202531.76 MB
Product Release Notes
151.8 KB2025-10-02
macOS flash bundle for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-3162, TLFC-3322.
ThunderLink FC 3162, FC 3322 Flash Bundle VMware

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
ATTO recommends our customers use the latest drivers available. If you require the latest version, please download them at:

https://www.vmware.com/resources/compatibility/search.php?deviceCategory=io

Select your version of ESXi in the Product Release Version, select ATTO Technology from the Brand list, and within the IO Device type field select the proper protocol.
ThunderLink FC 3162, FC 3322 Flash Bundle Windows

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Windows flash bundle for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-3162, TLFC-3322.
ThunderLink FC 3162, FC 3322 MultiPath Director Driver Linux

2 files
Driver Version
v2.16.6-MP1.25 MB
Product Release Notes
270.84 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables Linux hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8 & 9, Rocky Linux 8 & 9, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
ThunderLink FC 3162, FC 3322 MultiPath Director Driver macOS – Dext

2 files
Driver Version
v1.02.1-MP3.74 MB
Product Release Notes
160.32 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 26 Tahoe.
ThunderLink FC 3162, FC 3322 MultiPath Director Driver macOS – Kext

2 files
Driver Version
v3.15-MP2.34 MB
Product Release Notes
279.65 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers or kexts (also known as System Extensions) to provide the highest-performing drivers possible.
ThunderLink FC 5082 Driver Linux

2 files
Driver Version
v2.29.4858.09 KB
Product Release Notes
268.96 KB2025-10-23
Linux device driver for ThunderLink FC 5082 Fibre Channel Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15 & 16, SUSE Linux Enterprise Server 15, & 16 Ubuntu 22.04 LTS & 24.04 LTS.

 
ThunderLink FC 5082 Driver macOS

2 files
Driver version
v3.372.16 MB
Product Release Notes
284.29 KB2024-06-24
macOS device driver for ThunderLink FC 5082 Fibre Channel Adapters.

Supports the following macOS Versions: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
ThunderLink FC 5082 Driver Windows

2 files
Driver Version
v2.133.27 MB
Product Release Notes
204.27 KB2024-11-07
Windows device driver for ThunderLink FC 5082 Fibre Channel Adapters.

Supports the following versions of Windows: Windows 10, 11 and Windows Server 2016, 2019, 2022 & 2025.

 
ThunderLink FC 5082 Flash Bundle Linux

2 files
Flash Bundle Version
v04/06/2018687.18 KB
Product Release Notes
127.32 KB2021-04-28
Linux flash bundle for ThunderLink FC 5082 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-5082.
ThunderLink FC 5082 Flash Bundle macOS

2 files
Flash Bundle version
v04/06/20181.37 MB
Product Release Notes
127.32 KB2021-04-28
macOS flash bundle for ThunderLink FC 5082 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-5082.
ThunderLink FC 5082 Flash Bundle Windows

2 files
Flash Bundle Version
v04/06/2018687.21 KB
Product Release Notes
127.32 KB2021-04-28
Windows flash bundle for ThunderLink FC 5082 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-5082.
ThunderLink FC 5082 Multi-Path Director Driver Linux

2 files
Driver Version
v2.29.4-MP1.14 MB
Product Release Notes
302.99 KB2025-10-23
ATTO MultiPath Director is a proprietary driver that enables Linux hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15 & 16, SUSE Linux Enterprise Server 15, & 16 Ubuntu 22.04 LTS & 24.04 LTS.
ThunderLink FC 5082 Multi-Path Director Driver macOS

2 files
Multi-Path Director version
v3.37MP2.83 MB
Product Release Notes
328.15 KB2024-07-09
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
ThunderLink FC 5642, FC 5322 Driver Linux

2 files
Driver Version
v2.16.6984.7 KB
Product Release Notes
251.45 KB2026-01-27
Proprietary Linux device driver for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8, 9 & 10, Rocky Linux 8, 9 & 10, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
ThunderLink FC 5642, FC 5322 Driver macOS – Dext

2 files
Driver Version
v1.02.13.53 MB
Product Release Notes
160.32 KB2026-01-27
macOS dext device driver for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ThunderLink FC 5642, FC 5322 Driver macOS – Kext

2 files
Driver Version
v3.152.47 MB
Product Release Notes
247 KB2026-01-27
macOS device driver for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers or kexts (also known as System Extensions) to provide the highest-performing drivers possible.
ThunderLink FC 5642, FC 5322 Driver Windows

2 files
Driver Version
v3.013.87 MB
Product Release Notes
250.24 KB2025-10-02
Windows device driver for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Supports the following versions of Windows: Windows 10, 11 and Windows Server 2019, 2022 & 2025.
ThunderLink FC 5642, FC 5322 Flash Bundle Linux

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Linux flash bundle for ThunderLink FC 3162 & FC 3322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-5642, TLFC-5322.
ThunderLink FC 5642, FC 5322 Flash Bundle macOS

2 files
Flash Bundle Version
v09/19/202531.76 MB
Product Release Notes
151.8 KB2025-10-02
macOS flash bundle for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-5642, TLFC-5322.
ThunderLink FC 5642, FC 5322 Flash Bundle Windows

2 files
Flash Bundle Version
v09/19/202530.37 MB
Product Release Notes
151.8 KB2025-10-02
Windows flash bundle for ThunderLink FC 5642 & FC 5322 Fibre Channel Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLFC-3162, TLFC-3322.
ThunderLink FC 5642, FC 5322 MultiPath Director Driver Linux

2 files
Driver Version
v2.16.6-MP1.25 MB
Product Release Notes
270.84 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables Linux hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following Linux Distributions: Red Hat Enterprise Linux 8 & 9, Rocky Linux 8 & 9, openSUSE Leap 15, SUSE Linux Enterprise Server 15, Ubuntu 22.04 LTS & 24.04 LTS.
ThunderLink FC 5642, FC 5322 MultiPath Director Driver macOS – Dext

2 files
Driver Version
v1.02.1-MP3.74 MB
Product Release Notes
160.32 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 26 Tahoe.
ThunderLink FC 5642, FC 5322 MultiPath Director Driver macOS – Kext

2 files
Driver Version
v3.15-MP2.34 MB
Product Release Notes
279.65 KB2026-01-27
ATTO MultiPath Director is a proprietary driver that enables macOS hosts to connect to storage systems that support ALUA for failover, failback and load balancing across Fibre Channel ports.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers or kexts (also known as System Extensions) to provide the highest-performing drivers possible.
ThunderLink NS 3252, N3 3102, N3 3102T Adapter Flash Bundle Windows

2 files
Flash Bundle version
v32.10108.88 MB
Product Release Notes
121.35 KB2024-03-14
Windows flash bundle 32.1010 for ThunderLink NS 3252, N3 3102, N3 3102T adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLNS-3252, TLN3-3102 & TLN3-3102T.
ThunderLink NS 3252, N3 3102, N3 3102T Flash Bundle Linux

2 files
Flash Bundle Version
v32.10108.88 MB
Product Release Notes
121.35 KB2024-03-14
Linux flash bundle 32.1010 for ThunderLink NS 3252, N3 3102 & N3 3102T adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLNS-3252, TLN3-3102 & TLN3-3102T.
ThunderLink NS 3252, N3 3102, N3 3102T Flash Bundle macOS

2 files
Flash Bundle version
v32.10108.87 MB
Product Release Notes
121.35 KB2024-03-14
macOS flash bundle 32.1010 for ThunderLink NS 3252, N3 3102 & N3 3102T adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: FFRM-N322, TLNS-3252, TLN3-3102 & TLN3-3102T.
ThunderLink NS 5102 Flash Bundle Linux

2 files
Flash Bundle Version
v235.1.160.015.41 MB
Product Release Notes
123.81 KB2025-12-08
Linux flash bundle for ThunderLink NS 5102 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLNS-5102.
ThunderLink NS 5102 Flash Bundle macOS

2 files
Flash Bundle Version
v235.1.160.015.47 MB
Product Release Notes
123.81 KB2025-12-08
macOS flash bundle for ThunderLink NS 5102 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLNS-5102.

 
ThunderLink NS 5102 Flash Bundle Windows

2 files
Flash Bundle Version
v235.1.160.015.41 MB
Product Release Notes
123.81 KB2025-12-08
Windows flash bundle for ThunderLink NS 5102 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLNS-5102.
ThunderLink SH 3128 Driver Linux

2 files
Driver Version
v1.57.101.7 MB
Product Release Notes
234.7 KB2026-01-27
Proprietary Linux device driver for ThunderLink SH 3128 Adapters.

Supports the following Linux Distributions: RHEL 8, 9, 10, Rocky Linux 8, 9, 10, openSUSE LEAP 15, 16, SLES 15, 16 & Ubuntu 22.04, 24.04.
ThunderLink SH 3128 Driver macOS – Dext

2 files
Driver Version
v1.01.14.17 MB
Product Release Notes
120.25 KB2025-12-22
macOS Dext driver for ThunderLink SH 3128 SAS/SATA Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ThunderLink SH 3128 Driver macOS – Kext

2 files
Driver Version
v1.18.23.12 MB
Prouduct Release Notes
186.83 KB2025-12-22
macOS Kext driver for ThunderLink SH 3128 SAS/SATA Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

In macOS 11, Apple introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit here.

When installing an ATTO driver on macOS, you may get a pop-up message warning stating that “this is a system extension that will be incompatible with a future version of macOS.” There is no need to be concerned. ATTO currently uses Kernel Extension Drivers to provide the highest-performing drivers possible.
ThunderLink SH 3128 Driver Windows

2 files
Driver Version
v1.524.75 MB
Product Release Notes
208.28 KB2025-12-22
Windows device driver for ThunderLink SH 3128 Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022 & 2025.
ThunderLink SH 3128 Flash Bundle Linux

1 file
Flash Bundle version
v12/13/20228.83 MB
Linux flash bundle for ThunderLink SH 3128 adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: ThunderLink SH 3128.
ThunderLink SH 3128 Flash Bundle macOS

2 files
Flash Bundle version
v12/13/20228.9 MB
Product Release Notes
131.55 KB2023-01-30
macOS flash bundle for ThunderLink SH 3128 SAS/SATA Adapters.

Instructions on how to flash can be found in the ReadMe downloaded with the flash bundle file.

Supported Products: TLSH-3128.
ThunderLink SH 3128 Flash Bundle VMware

2 files
Flash Bundle Version
v12/13/20220 KB
Product Release Notes
0 KB2022-12-13
ATTO recommends our customers use the latest drivers available. If you require the latest version, please download them at:

https://www.vmware.com/resources/compatibility/search.php?deviceCategory=io

Select your version of ESXi in the Product Release Version, select ATTO Technology from the Brand list, and within the IO Device type field select the proper protocol.
ThunderLink SH 3128 Flash Bundle Windows

2 files
Flash Bundle version
v12/13/20228.83 MB
Product Release Notes
131.55 KB2022-12-13
Windows flash bundle for SH 3128 Thunderbolt adapters.

Please refer to the Product Release Notes for more detailed information on operating system support as well as specific information about release contents.
XstreamCORE 7550 Firmware

2 files
XC7550_3_70_32F.zbd
12.71 MB
XstreamCORE 7550 Firmware PRN
219.91 KB
The latest firmware for XstreamCORE 7550 Bridge.

Instructions on how to flash the latest firmware your bridge can be found in the Installation & Operations Manual.
XstreamCORE 7600 Firmware

2 files
XC7600_4_01_001F.zbd
48.34 MB
XstreamCORE 7600 Firmware PRN
206.59 KB
The latest firmware for XstreamCORE 7600 Bridge.

Instructions on how to flash the latest firmware your bridge can be found in the Installation & Operations Manual.
XstreamCORE 8100T Firmware

2 files
Firmware Version
v2.0641.31 MB
Product Release Notes
177.71 KB2025-06-23
The latest firmware for XstreamCORE 8100T Bridge.

Instructions on how to flash the latest firmware your bridge can be found in Section 6 (page 24) of the Installation & Operations Manual:

https://www.atto.com/wp-content/uploads/WebCollateral/manuals/XstreamCORE-ET-8100T-Product-Installation-and-Operations-Manual-1.pdf

 

Getting Started Guide for assisting first time users with setting up and configuring your bridge:

https://www.atto.com/wp-content/uploads/WebCollateral/manuals/XstreamCORE-ET-8100T-Getting-Started-Guide.pdf
XstreamCORE 8200 Firmware

1 file
Product Release Notes
167.78 KB
Please contact ATTO Customer Support at +1 (716) 691-1999 or via our web site at https://www.atto.com/about/contact-atto/ to obtain the latest instructions and firmware for your XtreamCORE Intelligent Bridge.
XstreamCORE 8200T Firmware

1 file
XstreamCORE 8200T Firmware PRN
167.91 KB
Please contact ATTO Customer Support at +1 (716) 691-1999 or via our web site at https://www.atto.com/about/contact-atto/ to obtain the latest instructions and firmware for your XtreamCORE Intelligent Bridge.
Xtend SAN™ iSCSI Initiator for macOS

2 files
Xtend SAN version
v7.0149.11 MB
Product Release Notes
181.27 KB2024-11-07
Version 7 of ATTO Xtend SAN iSCSI Initiator for Mac.

Click Here for the Xtend SAN iSCSI Initiator Installation & Operations Manual.

Click Here for a step by step guide on YouTube to assist with the installation/authorization process of Xtend SAN.

This software supports: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

Note: Minor revision upgrades of Xtend SAN (i.e. 7.x to 7.y) are provided free of charge to users.

Major version upgrades (i.e. 6.x to 7.x) require purchase if prior version was purchased more than 90 days previous.
XtendSAN™ iSCSI Initiator for macOS

2 files
Xtend SAN Version
v8.0049.15 MB
Product Release Notes
187.13 KB2025-11-24
Version 8 of ATTO XtendSAN iSCSI Initiator for Mac.

Click Here for the Xtend SAN iSCSI Initiator Installation & Operations Manual.

Click Here for a step by step guide on YouTube to assist with the installation/authorization process of XtendSAN.

This software supports: macOS 26 Tahoe, macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura.

Note: Minor revision upgrades of XtendSAN (i.e. 8.x to 8.y) are provided free of charge to users.

Major version upgrades (i.e. 7.x to 8.x) require purchase if prior version was purchased more than 90 days previous.