Why does Windows XP show "HI-SPEED USB Device Plugged into non-HI-SPEED USB Hub" for Contec ADI16-4(USB)?
- CCameron CruzAug 2, 2025
This message appears because the USB module supports HighSpeed (480Mbps) communication, but Full Speed (12Mbps) is being used because the host controller and HUT device do not support HighSpeed. This message does not disturb the operation.