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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.

Select an ATTO Product plus a Product Family to begin:

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
ATTO ConfigTool macOS Archive

Files in Package:
  • osx_app_configtool_438.dmg (v4.38) 116.09 MB
 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.

Important Note: This is a previous version of the ConfigTool. 		Download
ATTO ConfigTool Windows Archive

Files in Package:
  • win_app_configtool_438.exe 53.15 MB
 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. 		Download
ExpressPCI U320 SCSI Linux

Files in Package:
  • Driver version: (v1.11) 506.88 KB
  • Flash Bundle version: (v04/10/2009) 168.87 KB
  • ConfigTool version: (v3.38) 12.78 MB
 Included in this package are legacy software download packages for ATTO ExpressPCI SCSI HBAs and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

Important Note: This software does NOT support newer, modern Linux kernels and is known to fail.

This software supports: Red Hat Enterprise Linux 3, Red Hat Enterprise Linux 4, Red Hat Enterprise Linux 5, SUSE Linux 9, SUSE Linux 9.1, SUSE Linux 9.3, & SUSE Linux 10.

Supported Products: ExpressPCI UL4S, ExpressPCI UL4D, ExpressPCI UL5D & ExpressPCI UL5D Low Profile 		Download
ExpressPCI U320 SCSI Mac OS X

Files in Package:
  • Driver version: (v4.43) 418.46 KB
  • Flash Bundle version: (v04/10/2009) 185.13 KB
  • ConfigTool version: (v3.38) 13.25 MB
 Included in this package are legacy software download packages for ATTO ExpressPCI SCSI HBAs and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

Important Note: This software does NOT support newer, modern versions of macOS or Apple Silicon and is known to fail.

This software supports: Mac OS X 10.5 (Leopard), Mac OS X 10.6 (Snow Leopard), Mac OS X 10.7 (Lion) & Mac OS X 10.8 (Mountain Lion).

Supported Products: ExpressPCI UL4S, ExpressPCI UL4D, ExpressPCI UL5D & ExpressPCI UL5D Low Profile 		Download
ExpressPCI U320 SCSI Windows

Files in Package:
  • Driver version (v3.16) 370.53 KB
  • Flash Bundle version (v04/10/2009) 168.88 KB
  • ConfigTool Version (v3.38) 41.28 MB
 Included in this package are legacy software download packages for ATTO ExpressPCI SCSI HBAs and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

Important Note: This software does NOT support newer, modern versions of Windows and is known to fail.

This software supports: Windows Vista, Windows 7, Windows Server 2003, Windows Server 2008.

Supported Products: ExpressPCI UL4S, ExpressPCI UL4D, ExpressPCI UL5D & ExpressPCI UL5D Low Profile 		Download
ExpressSAS 12Gb [Legacy] Driver Linux

Files in Package:
  • Driver version: (v1.56) 1.7 MB
  • Product Release Notes 228.33 KB
 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. 		Download
ExpressSAS 12Gb [Legacy] Driver macOS

Files in Package:
  • Driver Version (v1.17) 3.01 MB
  • Product Release Notes 168.76 KB
 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. 		Download
ExpressSAS 12Gb [Legacy] Driver Windows

Files in Package:
  • Driver Version (v1.52) 4.75 MB
  • Product Release Notes 208.28 KB
 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. 		Download
ExpressSAS 12Gb [Legacy] Flash Bundle Linux

Files in Package:
  • Flash Bundle version: (v12/13/2022) 8.83 MB
 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. 		Download
ExpressSAS 12Gb [Legacy] Flash Bundle macOS

Files in Package:
  • Flash Bundle version (v12/13/2022) 8.9 MB
 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 H1280, ExpressSAS H1208, ExpressSAS H1244, ExpressSAS H12F0 & ExpressSAS H120F. 		Download
ExpressSAS 12Gb [Legacy] Flash Bundle Windows

Files in Package:
  • Flash Bundle version (v12/13/2022) 8.83 MB
 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 H1280, ExpressSAS H1208, ExpressSAS H1244, ExpressSAS H12F0 & ExpressSAS H120F. 		Download
ExpressSAS 6Gb HBA Driver Linux

Files in Package:
  • lnx_drv_esashba2_2410f1.tgz (v2.41) 1.08 MB
  • ExpressSAS 6Gb HBA Driver Linux PRN 304.65 KB
 Proprietary Linux device driver for ExpressSAS 6Gb Host Bus Adapters.

Supports the following Linux Distributions: CentOS 7 & 8, RHEL 7 & 8, Rocky Linux 8, openSUSE LEAP 42, 15, SLES 12, 15, Ubuntu 20.04 & 22.04.

WARNING: Some newer Linux distributions (e.g. CentOS, openSUSE) include a driver that conflicts with the ATTO ExpressSAS 6Gb Host Bus Adapter and may cause the system to hang or reboot during initialization when the HBA is installed. If this occurs, you must follow the procedure described in the section Conflicts with the pm8001/pm80xx module before installing the HBA. More information can be found in the ReadMe file downloaded with the device driver. 		Download
ExpressSAS 6Gb HBA Driver macOS

Files in Package:
  • macos_kext_esashba2_2690f1.dmg (v2.69) 1.79 MB
  • ExpressSAS 6Gb HBA Driver macOS PRN 257.74 KB
 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. 		Download
ExpressSAS 6Gb HBA Driver Windows

Files in Package:
  • win_drv_esashba2_2370f1.exe (v2.37) 6.35 MB
  • ExpressSAS 6Gb HBA Driver Windows PRN 220.73 KB
 Windows device driver for ExpressSAS 6Gb Host Bus Adapters.

Supports the following versions of Windows: Windows 10, 11 & Windows Server 2019, 2022 & 2016. 		Download
ExpressSAS 6Gb HBA Flash Bundle Linux

Files in Package:
  • lnx_fls_esashba2_221213.tgz 3.15 MB
 Linux flash bundle for ExpressSAS 6Gb Host Bus 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. 		Download
ExpressSAS 6Gb HBA Flash Bundle macOS

Files in Package:
  • macos_fls_esashba2_221213.dmg 3.17 MB
 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. 		Download
ExpressSAS 6Gb HBA Flash Bundle Windows

Files in Package:
  • win_fls_esashba2_221213.zip 3.15 MB
 Windows 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. 		Download
ExpressSAS 6Gb RAID Controller Software Linux

Files in Package:
  • ATTO ConfigTool (v3.38) 12.78 MB
  • 6Gb RAID Driver Linux (v2.71) 584.05 KB
  • 6Gb RAID Flash Bundle Linux (v19_01_25) 9.08 MB
  • Technical Specifications 6Gb RAID 1.04 MB
  • Best Practices for ExpressSAS RAID 160.07 KB
  • ExpressSAS RAID Troubleshooting Guide 539.26 KB
  • Utilities Installation and Operations Manual 7.51 MB
 Included in this package are legacy software download packages for ATTO ExpressSAS 6Gb RAID controllers and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

Important: driver is known to fail to compile/make/ install on Linux kernel 4.14, or higher.


This software supports:  Red Hat Enterprise Linux 6 & 7, CentOS 6 & 7,  openSUSE 13.2, openSUSE 42.1, SUSE Linux Enterprise Server 11.3, SUSE Linux Enterprise Server 12, Fedora 21, & Fedora 22. 		Download
ExpressSAS 6Gb RAID Controller Software macOS

Files in Package:
  • ATTO ConfigTool (v4.38) 116.09 MB
  • 6Gb RAID Driver macOS (v3.80) 415.17 KB
  • 6Gb RAID Flash Bundle macOS (v19_01_25) 9.1 MB
  • Technical Specifications 6Gb RAID 1.04 MB
  • Best Practices for ExpressSAS RAID 160.07 KB
  • ExpressSAS RAID Troubleshooting Guide 539.26 KB
  • Utilities Installation and Operations Manual 7.51 MB
 Included in this package are legacy software download packages for ATTO ExpressSAS 6Gb RAID controllers and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

Important: This software does NOT support Apple Silicon. Only for use with Intel based Mac systems.

This software supports: macOS 10.15 Catalina, macOS 10.14 Mojave, macOS 10.13 High Sierra, macOS 10.12 Sierra & Mac OS X 10.11 El Capitan.
 		Download
ExpressSAS 6Gb RAID Controller Software Windows

Files in Package:
  • ATTO ConfigTool (v4.38) 53.15 MB
  • 6Gb RAID Driver Windows (v2.75) 1.76 MB
  • 6Gb RAID Flash Bundle Linux (v19_01_25) 9.08 MB
  • Technical Specifications 6Gb RAID 1.04 MB
  • Best Practices for ExpressSAS RAID 160.07 KB
  • ExpressSAS RAID Troubleshooting Guide 539.26 KB
  • Utilities Installation and Operations Manual 7.51 MB
 Included in this package are legacy software download packages for ATTO ExpressSAS 6Gb RAID controllers and associated applications.

These download packages are for End-of-Life products and are provided for the convenience of our customers. These products are no longer actively supported and the ATTO technical support team is able to provide limited assistance.

This software supports:  Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, & Windows Server 2016.
 		Download

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