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 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.
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.

The latest drivers and flash bundle are included with ATTO360 Storage. More information about supported products and supported versions can be found in the ReadMe file downloaded with ATTO360 Storage.
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.

 

The latest drivers and flash bundle are included with ATTO360 Storage. More information about supported products and supported versions can be found in the ReadMe file downloaded with ATTO360 Storage.
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.

 

The latest drivers and flash bundle are included with ATTO360 Storage. More information about supported products and supported versions can be found in the ReadMe file downloaded with ATTO360 Storage.
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 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 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 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 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 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.