The JCE131 Usb Type-c Gigabit Ethernet Adapter is a simple, one-piece external adapter that plugs into the Usb Type-c port on your MacBook Air, Chromebook, laptop and desktop computers. It is the ultimate solution if you do not have an Ethernet port or if you just want to increase your connection speed. It is elegantly designed and uses an Rj-45 connector that supports 10/100/1000 Mbps Ethernet performance which allows you to add networking capabilities to a computer without a Wlan connection.