DriverCove

ExpressSAS 12Gb s SAS SATA HBA Driver 1.20.4000.6000

by Atto Technology, Inc.Windows 1064-bitSHA-256 verified

Manufacturer
Atto Technology, Inc.
Device
ExpressSAS 12Gb s SAS SATA HBA
Driver version
1.20.4000.6000
Release date
August 18, 2015
Supported Windows
Windows 10
Architecture
64-bit (x64)
File size
989 KB
File name
202f4639-6c30-4adc-bc33-c9e2320e8f63_18d32e02c6461babb8523aa188e1554eb64a10d2.cab
Digital signature
Signed - catalog esas4hba.cat
INF version
08/18/2015,1.20.4000.6000
INF provider
ATTO Technology, Inc.
Device class
SCSIAdapter
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
4e1fb562cd506ad4b5e70f2aefc796e446c2e7cc3e457f0339a42d81584c0d21

Supported hardware IDs (21)

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 10) and architecture (x64)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).