The Surface Ethernet Adapter is a device that allows you to connect a Microsoft Surface device (such as Surface Pro, Surface Book, Surface Laptop, etc.) to a wired Ethernet network via a USB-to-Ethernet adapter. This adapter is especially useful for Surface devices, which generally do not include a built-in Ethernet port, but may need to connect to wired networks for stable, high-speed internet access.
The Surface Ethernet Adapter Windows driver is the software needed for Windows to properly recognize and interact with this hardware when you plug it in. The driver allows the operating system to communicate with the adapter and manage the Ethernet connection.