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:
VMware

Title
Celerity 16/32/64Gb Fibre Channel Driver VMware
Updated: September 3, 2026
Files in Package:
  • Driver Version (v2.21.7) 343.31 KB
VMware Driver for Celerity 16/32/64Gb Fibre Channel adapters.

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.
Celerity 16/32/64Gb Fibre Channel Flash Bundle VMware
Updated: October 15, 2026
Files in Package:
  • Flash Bundle Version (v260902) 30.9 MB
  • Product Release Notes 145.2 KB
VMware flash bundle for Celerity 16/32/64Gb Fibre Channel 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.