DriverCove

ATTO Technology, Inc. - Other Hardware - ATTO Celerity FC-42EN Fibre Channel Adapter Driver 2.50.2.0

by Atto Technology, Inc.Windows 11Windows 1032-bitSHA-256 verified

Manufacturer
Atto Technology, Inc.
Device
ATTO Technology, Inc. - Other Hardware - ATTO Celerity FC-42EN Fibre Channel Adapter
Driver version
2.50.2.0
Release date
December 8, 2006
Supported Windows
Windows 11, Windows 10
Architecture
32-bit (x86)
File size
228 KB
File name
20027221_08a1bc27eece4733d86e01fcd68391e71a49066f.cab
Digital signature
Signed - catalog ClrtyFC.cat
INF version
12/08/2006,2.50.2.0
INF provider
ATTO Technology, Inc.
Device class
SCSIAdapter
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
997d73a26e94bbc20f8e1d855be0d25cb70f4da2f0deffded230ad5b634b96bc

Supported hardware IDs (14)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 11, Windows 10) and architecture (x86)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run pnputil /add-driver C:\driver\*.inf /install.
  7. Check Device Manager: the device should show no warning icons, and the driver version should match.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).