DriverCove

T420-SO Unified Wire Ethernet Controller Driver 4.3.8.0

by ChelsioWindows 11Windows 1064-bitSHA-256 verified

Manufacturer
Chelsio
Device
T420-SO Unified Wire Ethernet Controller
Driver version
4.3.8.0
Release date
February 14, 2013
Supported Windows
Windows 11, Windows 10
Architecture
64-bit (x64)
File size
4.5 MB
File name
20543576_be5565177e555c40ccbd487ede60c51353f42935.cab
Digital signature
Signed - catalog ChT4Ndis.cat
INF version
02/14/2013,4.3.8.0
INF provider
Chelsio
Device class
Net
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
9f0c7c4230fd124571fe3bbe79663913950df5802a43b1f5c92374af4133161e

Supported hardware IDs (3)

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 (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).