The USB108YS device on Windows 10 is entirely usable – but success depends on correctly identifying the internal chipset. For Prolific‑based units, counterfeit detection requires older drivers; for CH340, installation is straightforward. Follow the steps above to avoid the common “Code 10” pitfall and establish reliable communication. If all else fails, replace the adapter with a known‑good FTDI or genuine Prolific device for a frustration‑free Windows 10 experience.
Windows will install the driver, and the device should now appear under Network adapters as a functioning controller. Microsoft Support Troubleshooting Common Issues QTS1081B adapter driver - Microsoft Q&A 31 Mar 2023 —
Users wanting 1 Gbps speeds, Wake-on-LAN, or automatic driver installation.
5 Mar 2020 — Available Drivers * File nameUSB Ethernet Adapter Driver. * Size1.4 MB. * SeverityRecommended. * Released23 May 2019.
While Windows 10 is excellent at finding drivers for popular hardware, the USB108YS often uses a legacy chipset that requires manual intervention. If you plug in the adapter and nothing happens (or a yellow exclamation mark appears), you need to install the driver manually.
Open Command Prompt as Admin → bcdedit /set testsigning on → reboot. Install driver, then disable with bcdedit /set testsigning off .
Once you have the VID/PID, download the corresponding driver:
