ATTO Software Downloads Archive

The following are archived versions of ATTO drivers and software.

Click here for current 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).

ATTO Product:
ExpressSAS

Product Family:
ExpressSAS 12Gb GT HBAs

Operating System:
All

Title
Archived ExpressSAS 12Gb GT Driver Linux
Files in Package:
  • Driver version: (v1.08) 1.09 MB
  • Product Release Notes 175.82 KB
 Archived Proprietary Linux device driver for ExpressSAS 12Gb GT 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 LTS & 24.04 LTS. 		Download
Archived ExpressSAS 12Gb GT Driver Linux
Files in Package:
  • Driver version: (v1.09) 1.17 MB
  • Product Release Notes 178.61 KB
 Archived Proprietary Linux device driver for ExpressSAS 12Gb GT 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 LTS & 24.04 LTS. 		Download
Archived ExpressSAS 12Gb GT Driver macOS
Files in Package:
  • Driver Version (v1.10) 1.9 MB
  • Product Release Notes 193.51 KB
 Archived macOS device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 13 Ventura, macOS 12 Monterey & macOS 11 Big Sur. 		Download
Archived ExpressSAS 12Gb GT Driver macOS
Files in Package:
  • Driver version (v1.09) 2.03 MB
  • Product Release Notes 182.55 KB
 Archived macOS device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 15 Sequoia, macOS 14 Sonoma & macOS 13 Ventura. 		Download
Archived ExpressSAS 12Gb GT Driver macOS – Dext
Files in Package:
  • Driver Version (v1.00.8) 3.13 MB
  • Product Release Notes 116.62 KB
 Archived macOS Dext driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe. 		Download
Archived ExpressSAS 12Gb GT Driver Windows
Files in Package:
  • Driver Version (v1.09) 4.3 MB
  • Product Release Notes 173.26 KB
 Archived Windows device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022, 2025. 		Download
Archived ExpressSAS 12Gb GT Driver Windows
Files in Package:
  • Driver version: (v1.08) 4.29 MB
  • Product Release Notes 170.91 KB
 Archived Windows device driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2016, 2019, 2022. 		Download
ExpressSAS 12Gb GT Driver Linux
Files in Package:
  • Driver Version (v1.12.12) 1.18 MB
  • Product Release Notes 188.82 KB
 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. 		Download
ExpressSAS 12Gb GT Driver macOS – Dext
Files in Package:
  • Driver Version (v2.01) 3.34 MB
  • Product Release Notes 122.85 KB
 macOS Dext driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe. 		Download
ExpressSAS 12Gb GT Driver macOS – Kext
Files in Package:
  • Driver Version (v1.11.3) 2.07 MB
  • Product Release Notes 201.05 KB
 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. 		Download
ExpressSAS 12Gb GT Driver Windows
Files in Package:
  • Driver Version (v1.10) 4.31 MB
  • Product Release Notes 179.84 KB
 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. 		Download
ExpressSAS 12Gb GT WHQL Driver Windows 10
Files in Package:
  • WHQL Driver version (v1.00) 13.51 MB
 Windows Hardware Quality Labs (WHQL) driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows 10 		Download
ExpressSAS 12Gb GT WHQL Driver Windows 2019
Files in Package:
  • WHQL Driver version (v1.00) 13.51 MB
 Windows Hardware Quality Labs (WHQL) driver for ExpressSAS 12Gb GT Host Bus Adapters.

Supports the following versions of Windows: Windows Server 2019
 		Download
vConfigTool for VMware 6.7/7.0
Files in Package:
  • vConfigTool version (v1.30) 6.19 MB
  • Product Release Notes
 The ATTO vConfigTool offers remote management features that allow you to set up, optimize and manage both locally and remotely connected ATTO products. Refer to the Utilities Manual tor details. Download