You're looking for drivers for the RD9700 USB 2.0 to Fast Ethernet Adapter on Windows 11. Here are some helpful steps and resources to download the drivers:
Some third-party tools, like Driver Talent, Driver Easy, or Snappy Driver Installer, can help you find and install drivers. Be cautious when using these tools, as they might bundle additional software. You're looking for drivers for the RD9700 USB 2