If you’ve ever dived into your Device Manager and found a mysterious "Unknown Device" or a hardware ID labeled USB\VID_0FE6&PID_9900 , you’ve likely stumbled upon one of the most common yet confusing budget peripherals on the market. This specific combination identifies the Corechip SR9900 USB 2.0 to Fast Ethernet Adapter
Understanding USB\VID_0FE6&PID_9900: Drivers, Identification, and Troubleshooting usb vid-0fe6 amp-pid-9900
Operates over USB 2.0 , though it is backward compatible with USB 1.1 ports. If you’ve ever dived into your Device Manager
The USB device with and PID 9900 is a Corechip SR9900 USB 2.0 to Fast Ethernet Adapter . This generic hardware is commonly found in budget-friendly USB-to-RJ45 (Ethernet) dongles used to add wired networking to laptops, tablets, or single-board computers. Device Identification & Drivers This generic hardware is commonly found in budget-friendly
9900 identifies the specific product or chip model, which functions as a DM9601 USB To Fast Ethernet Adapter . Driver Compatibility and Download Guide
Detailed descriptors for this device usually reveal the following configuration: USB Version: 2.10 (High-Speed). Maximum Power: 100mA (Bus Powered). Network Speed: 10/100 Mbps (Fast Ethernet). Endpoints: Bulk transfer for receiving data. Bulk transfer for sending data. Interrupt transfer for status/control. Arch Linux Forums 3. Driver & Compatibility Issues
The hardware ID corresponds to the Corechip SR9900 USB 2.0 to Fast Ethernet Adapter Go to product viewer dialog for this item.