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:
ExpressSAS 24Gb HBAs

Operating System:
All

Title
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.
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.
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.
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 Linux

2 files
Driver version
v1.011.17 MB
Product Release Notes
147.84 KB2025-02-03
Proprietary Linux device driver for ExpressSAS 24Gb 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.

More information can be found in the ATTO ExpressSAS 24Gb SAS Adapter Linux ReadMe file downloaded with the driver.
ExpressSAS 24Gb Driver macOS – Dext

2 files
Driver Version
v1.023.89 MB
Product Release Notes
121.59 KB2026-02-10
macOS Dext driver for ExpressSAS 24Gb Host Bus Adapters.

Supports the following macOS Versions: macOS 26 Tahoe.
ExpressSAS 24Gb Driver macOS – Kext

2 files
Driver Version
v1.03.32.32 MB
Product Release Notes
161.62 KB2026-01-23
macOS Kext driver for ExpressSAS 24Gb 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.
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 Linux

2 files
Flash Bundle version
v01/30/202510.84 MB
Product Release Notes
107.25 KB2025-02-03
Linux 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 Flash Bundle macOS

2 files
Flash Bundle version
v01/30/202511.75 MB
Product Release Notes
107.25 KB2025-02-03
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 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.