Realtek - Sound - REALTEK 2831U Device Driver 4.31.1.1
by RealtekXP64-bitSHA-256 verified
- Manufacturer
- Realtek
- Device
- Realtek - Sound - REALTEK 2831U Device
- Driver version
4.31.1.1- Release date
- January 25, 2007
- Supported Windows
- Windows XP
- Architecture
- 64-bit (x64)
- File size
- 60 KB
- File name
20032487_7da5fba416e557f4798330942a58c6106df9c1e1.cab- Digital signature
- Signed - catalog
RTL2831U.cat - INF version
01/25/2007,4.31.1.1- INF provider
- REALTEK
- Device class
- MEDIA
- Source
- Microsoft Update Catalog
- Last verified
- July 8, 2026
- SHA-256
59748702cbb5eec831acde8616550da9c16421f3e0c59fc31c767e066b63f847
Supported hardware IDs (5)
- USB\VID_14AA&PID_0160
- USB\VID_2304&PID_022B
- USB\VID_0BDA&PID_2831
- USB\VID_13D3&PID_3220
- USB\VID_185B&PID_0100
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 XP) 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).