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.
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).
ATTO Product:
ExpressSAS
Product Family:
All
Operating System:
FreeBSD
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ExpressSAS 12Gb GT Driver FreeBSD Updated: May 27, 2026 Files in Package:
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Proprietary FreeBSD device driver for ExpressSAS 12Gb GT Host Bus Adapters. Supports the following FreeBSD versions: FreeBSD 13 & 14. |
Download |
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ExpressSAS 12Gb GT Flash Bundle FreeBSD Updated: May 27, 2026 Files in Package:
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FreeBSD flash bundle for ExpressSAS 12Gb GT Host Bus 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. |
Download |
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ExpressSAS 24Gb Driver FreeBSD Updated: June 22, 2026 Files in Package:
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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. |
Download |
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ExpressSAS 24Gb Flash Bundle FreeBSD Updated: June 22, 2026 Files in Package:
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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. |
Download |