RT Systems - Other hardware - USB-81 Radio Cable Driver 2.6.0.0
by RT Systems8.187XP64-bit32-bitSHA-256 verified
- Manufacturer
- RT Systems
- Device
- RT Systems - Other hardware - USB-81 Radio Cable
- Driver version
2.6.0.0- Release date
- October 22, 2009
- Supported Windows
- Windows 8.1, Windows 8, Windows 7, Windows XP
- Architecture
- 64-bit (x64), 32-bit (x86)
- File size
- 506 KB
- File name
20325584_6ef3668fb72899b48ccd25449c41d96c91267422.cab- Digital signature
- Signed - catalog
ftdiport.cat - INF version
10/22/2009,2.06.00- INF provider
- RT Systems
- Device class
- Ports
- Source
- Microsoft Update Catalog
- Last verified
- July 8, 2026
- SHA-256
ca96393e509769e9febbad93f43024d22d75d5dea7579b4523a08959cba07b91
Supported hardware IDs (4)
- FTDIBUS\COMPORT&VID_2100&PID_9E5B
- FTDIBUS\COMPORT&VID_2100&PID_9E50
- FTDIBUS\COMPORT&VID_0403&PID_9E50
- USB\VID_2100&PID_9E5B
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 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.
- 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).