The D-Link DUB-2315 LAN adapter provides 2.5 Gigabit Ethernet connectivity for desktop and portable computers. Simply plug the DUB-2315 adapter into the computer's USB Type-C port, and you can connect a switch or router to the computer via an Ethernet cable. If the computer does not have a USB Type-C port, the additional Type-C adapter can be plugged into your computer's USB 3.0 Type-A port to convert it into a Type-C port.