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:
Celerity

Product Family:
Celerity 32/64Gb Gen 7 HBAs

Operating System:
FreeBSD

Title
Celerity 16/32/64Gb Fibre Channel Driver FreeBSD
Updated: September 10, 2025
Files in Package:
  • Driver Version (v2.04) 1.24 MB
  • Product Release Notes 209.24 KB
 Proprietary FreeBSD device driver for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

Supports the following FreeBSD versions: FreeBSD 13 & 14. 		Download
Celerity 16/32/64Gb Fibre Channel Flash Bundle FreeBSD
Updated: October 3, 2025
Files in Package:
  • Flash Bundle Version (v09/19/2025) 11.76 MB
  • Product Release Notes 151.8 KB
 FreeBSD flash bundle for Celerity 16/32/64Gb Fibre Channel Host Bus Adapters.

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

Supported Products: Celerity FC-161P, Celerity FC- 162P, Celerity FC-164P, Celerity FC-321E, Celerity FC-321E, Celerity FC-324E, Celerity FC-321P, Celerity FC- 322P, Celerity FC-324P, Celerity FC-641E , Celerity FC-642E and Celerity FC- 644E. 		Download