DriverCove

Quatech, Incorporated - Bus Controllers and Ports - Quatech QSX-100 PCIe Four-Port RS-232 Serial Adapter Driver 2.30.0.0

by Quatech, Incorporated8.187XP64-bit32-bitSHA-256 verified

Manufacturer
Quatech, Incorporated
Device
Quatech, Incorporated - Bus Controllers and Ports - Quatech QSX-100 PCIe Four-Port RS-232 Serial Adapter
Driver version
2.30.0.0
Release date
November 12, 2009
Supported Windows
Windows 8.1, Windows 8, Windows 7, Windows XP
Architecture
64-bit (x64), 32-bit (x86)
File size
1023 KB
File name
20324683_a71d35d828a6fe9138396e492577e1b3afbceafa.cab
Digital signature
Signed - catalog qserbrd.cat
INF version
11/12/2009,2.30
INF provider
Quatech, Incorporated
Device class
MultiPortSerial
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
813eb58d6c46ba04460dbe84657755a1f28655ac37c99773592cd008dfa38e29

Supported hardware IDs (44)

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 8.1, Windows 8, Windows 7, Windows XP) and architecture (x64, x86)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).