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).

ATTO Product:
ExpressSAS

Product Family:
All

Operating System:
macOS

Title
ExpressSAS 6Gb HBA Flash Bundle macOS

FileAction
macos_fls_esashba2_221213.dmg — 22123 — Updated on 2022-12-13
macOS flash bundle for ExpressSAS 6Gb adapters.

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

Supported Products: ExpressSAS H680, ExpressSAS H608, ExpressSAS H644, ExpressSAS H6F0 & ExpressSAS H60F.
ExpressSAS 6Gb HBA Driver macOS

FileAction
macos_kext_esashba2_2690f1.dmg — 2.69 — Updated on 2022-02-07
ExpressSAS 6Gb Driver macOS PRN — Updated on 2022-02-07
macOS device driver for ExpressSAS 6Gb Host Bus Adapters.

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

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 SAS/SATA Flash Bundle macOS

FileAction
macos_fls_esashba6_240507.dmg — 240507 — Updated on 2024-06-07
ExpressSAS 24Gb SAS/SATA Flash Bundle macOS PRN — Updated on 2024-06-07
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 Driver macOS

FileAction
macos_kext_esashba6_1010f1.dmg — 1.01 — Updated on 2024-06-07
ExpressSAS 24Gb Driver macOS PRN — Updated on 2024-06-07
macOS device driver for ExpressSAS 24Gb 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 GT Flash Bundle macOS

FileAction
macos_fls_esashba5_240529.dmg — 240529 — Updated on 2024-06-06
ExpressSAS 12Gb GT Flash Bundle macOS PRN — Updated on 2024-06-06
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 Driver macOS

FileAction
macos_kext_esashba5_1090f1.dmg — 1.09 — Updated on 2024-06-06
ExpressSAS 12Gb GT Driver macOS PRN — Updated on 2024-06-06
macOS device driver for ExpressSAS 12Gb GT 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] Flash Bundle macOS

FileAction
macos_fls_esashba4_221213.dmg — 221213 — Updated on 2022-12-13
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] Driver macOS

FileAction
macos_kext_esashba4_1160f1.dmg — 1.16 — Updated on 2024-06-07
ExpressSAS 12Gb [Legacy] Driver macOS PRN
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.
ATTO ConfigTool macOS

FileAction
ATTO ConfigTool Software — 4.41 — Updated on 2024-06-07
ATTO ConfigTool macOS PRN — 4.41 — Updated on 2024-07-17
The 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.