DriverCove

XR21V1412 2-channel UART Driver 2.1.0.0

by Exar Corporation864-bitSHA-256 verified

Manufacturer
Exar Corporation
Device
XR21V1412 2-channel UART
Driver version
2.1.0.0
Release date
February 27, 2014
Supported Windows
Windows 8
Architecture
64-bit (x64)
File size
58 KB
File name
20633363_219701ba0fc8454407918f4e1c7ff40a1691d0ff.cab
Digital signature
Signed - catalog xrusbserx64.cat
INF version
02/27/2014,2.1.0.0
INF provider
Exar Corporation
Device class
Ports
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
8e000a883f8d7294fe2b7f5b57a1b4ea7d24a383bd0b779ac4f5dc48f0af16ad

Supported hardware IDs (8)

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 8) 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).