Some UB93 devices actually use a or CH341 chipset rather than Prolific. This is especially common in cheap Arduino clones or USB-to-TTL adapters.
: Choose "Browse my computer for drivers" and navigate to the folder where you extracted the downloaded UB93 files. ub93 driver windows 10
If none of the above work, try the or "IddSampleDriver" community projects (GitHub). These are experimental but may restore function on Windows 10 22H2. Some UB93 devices actually use a or CH341
Step 5 — Testing the device
: When working correctly, these drivers provide stable Wi-Fi and Bluetooth connectivity for older hardware, though some users report occasional disconnects requiring a device reset (unplugging and replugging). Recommended Driver Versions ub93 driver windows 10