ATTO Software Downloads – Discontinued Products

The following are drivers and software for discontinued ATTO products. Discontinued Products (PDF)

Click here for current ATTO drivers and software. An archive of drivers and software for current ATTO products is 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 HBAs

Operating System:
All

Title
ExpressSAS 12Gb [Legacy] Driver Linux

FileAction
Driver version: — 1.56
Product Release Notes — Updated on 2025-02-25
Proprietary Linux device driver for ExpressSAS 12Gb [Legacy] 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.
ExpressSAS 12Gb [Legacy] Driver macOS

FileAction
Driver version — 1.17
Product Release Notes — Updated on 2025-02-25
macOS device driver for ExpressSAS 12Gb [Legacy] Host Bus Adapters.

Supports the following macOS Versions: macOS 14 Sonoma, macOS 13 Ventura, macOS 12 Monterey & macOS 11 Big Sur.

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 [Legacy] Driver Windows

FileAction
Driver version — 1.51
Windows device driver for ExpressSAS 12Gb [Legacy] Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11, Windows Server 2016, 2019, 2022 & 2025.
ExpressSAS 12Gb [Legacy] Flash Bundle Linux

FileAction
Flash Bundle version: — 12/13/2022
Linux flash bundle for ExpressSAS 12Gb [Legacy] adapters.

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

Supported Products: ExpressSAS H1280, ExpressSAS H1208, ExpressSAS H1244, ExpressSAS H12F0 & ExpressSAS H120F.
ExpressSAS 12Gb [Legacy] Flash Bundle macOS

FileAction
Flash Bundle version — 12/13/2022
macOS flash bundle for ExpressSAS 12Gb [Legacy] 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 [Legacy] Flash Bundle Windows

FileAction
Flash Bundle version — 12/13/2022
Windows flash bundle for ExpressSAS 12Gb [Legacy] 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.