Usb Vid-0fe6 Amp-pid-9900 -

Here’s a technical write-up for the USB device with and PID 0x9900 .

The USB device with is almost certainly a DM9601-based USB 1.1 to Fast Ethernet adapter from ICS Advent or a clone. It is functional for low-speed networking and legacy OS support but obsolete for modern high-bandwidth applications. usb vid-0fe6 amp-pid-9900

$5–10 USD. If you spend more than 30 minutes troubleshooting, buy a new adapter from a reputable brand (TP-Link, Anker, Cable Matters). Here’s a technical write-up for the USB device