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
MultiPath Director Windows
Updated: February 18, 2026
Files in Package:
  • MultiPath Director Version (v2.26) 2.24 MB
  • Product Release Notes 255.22 KB
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
Updated: July 13, 2026
Files in Package:
  • QuickNAV version (v3.90)
  • Product Release Notes
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
Updated: February 19, 2025
Files in Package:
  • QuickNAV version (v3.90) 11.61 MB
  • Product Release Notes
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 Flash Bundle VMware
Updated: October 28, 2025
Files in Package:
  • Flash Bundle Version (v09/19/2025) 30.37 MB
  • Product Release Notes 151.8 KB
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 5082 Driver Linux
Updated: July 7, 2026
Files in Package:
  • Driver Version (v2.30.6) 1 MB
  • Product Release Notes 256.6 KB
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
Updated: July 7, 2026
Files in Package:
  • Driver Version (v3.38.1) 1.85 MB
  • Product Release Notes 273.22 KB
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
Updated: July 7, 2026
Files in Package:
  • Driver Version (v2.14.1) 3.71 MB
  • Product Release Notes 193.45 KB
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
Updated: October 28, 2025
Files in Package:
  • Flash Bundle Version (v04/06/2018) 687.18 KB
  • Product Release Notes 127.32 KB
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
Updated: October 23, 2025
Files in Package:
  • Flash Bundle version (v04/06/2018) 1.37 MB
  • Product Release Notes 127.32 KB
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
Updated: October 28, 2025
Files in Package:
  • Flash Bundle Version (v04/06/2018) 687.21 KB
  • Product Release Notes 127.32 KB
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
Updated: July 7, 2026
Files in Package:
  • Driver Version (v2.30.6-MP) 1.32 MB
  • Product Release Notes 284.78 KB
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
Updated: July 7, 2026
Files in Package:
  • Driver Version (v3.38.1-MP) 2.12 MB
  • Product Release Notes 315.92 KB
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 SH 3128 Flash Bundle VMware
Updated: April 22, 2026
Files in Package:
  • Flash Bundle Version (v12/13/2022) 131.55 KB
  • Product Release Notes 8.83 MB
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.
XstreamCORE 7550 Firmware
Updated: October 15, 2024
Files in Package:
  • 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
Updated: October 15, 2024
Files in Package:
  • 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
Updated: June 30, 2026
Files in Package:
  • Firmware Version (v2.08.4) 42.1 MB
  • Product Release Notes 171.47 KB
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

 

NOTE: This firmware version introduces enhancements that require a forward-only upgrade path. As a result, reverting to previous firmware versions is not supported. We recommend reviewing the release notes prior to upgrading. For additional information, please contact ATTO technical support.
XstreamCORE 8200 Firmware
Updated: May 19, 2026
Files in Package:
  • Product Release Notes (v6.07) 168.49 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
Updated: May 19, 2026
Files in Package:
  • Product Release Notes (v6.07) 168.93 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 IP Discovery Tool Linux
Updated: June 30, 2026
Files in Package:
  • Discovery Tool Version (v1.00) 7.59 MB
An easy-to-use command-line (CLI) utility that enables users to quickly identify the management IP address of an XStreamCore 8100T bridge.
XStreamCore IP Discovery Tool macOS
Updated: June 30, 2026
Files in Package:
  • Discovery Tool Version (v1.00) 8.08 MB
An easy-to-use command-line (CLI) utility that enables users to quickly identify the management IP address of an XStreamCore 8100T bridge.