To connect the adapter and use an Ethernet connection
Plug the USB-C connector on the adapter into the USB-C port on your Surface device. The driver will install automatically and take a few moments.
Take an Ethernet cable that’s plugged into a router, switch, hub, or modem, and then plug the other end into the Ethernet jack on the adapter.
To check your Ethernet connection, on your Surface, select the Network icon on the lower right side of the taskbar. In the list of networks, you should see the name of the Ethernet network with the word Connected underneath.