XR21V1414 4-channel UART Driver 1.9.0.0
by Exar Corporation764-bitSHA-256 verified
- Manufacturer
- Exar Corporation
- Device
- XR21V1414 4-channel UART
- Driver version
1.9.0.0- Release date
- October 31, 2012
- Supported Windows
- Windows 7
- Architecture
- 64-bit (x64)
- File size
- 57 KB
- File name
20541179_40eff874d2bbf43d021be1732d1c62e47c512f23.cab- Digital signature
- Signed - catalog
xrusbserx64.cat - INF version
10/31/2012,1.9.0.0- INF provider
- Exar Corporation
- Device class
- Ports
- Source
- Microsoft Update Catalog
- Last verified
- July 8, 2026
- SHA-256
1c0e93f55191be4b3d9d9f82dd56d80200cbb4ff9155f13fc8e10e125d3aaaab
Supported hardware IDs (8)
- USB\VID_04E2&PID_1410&MI_00
- USB\VID_04E2&PID_1411&MI_00
- USB\VID_04E2&PID_1412&MI_00
- USB\VID_04E2&PID_1412&MI_02
- USB\VID_04E2&PID_1414&MI_00
- USB\VID_04E2&PID_1414&MI_02
- USB\VID_04E2&PID_1414&MI_04
- USB\VID_04E2&PID_1414&MI_06
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
- Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
- Verify compatibility: your Windows version (Windows 7) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
- Download the file using the button - it comes directly from Microsoft Update Catalog.
- Optionally verify the checksum: open PowerShell, run
Get-FileHash your-download.cab -Algorithm SHA256and compare with the SHA-256 above. - Extract the .cab archive: right-click → Extract All, or run
expand -F:* file.cab C:\driver\in Command Prompt. - 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. - 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).