Apple USB Ethernet Adapter

Easily connect your MacBook Air computer to an Ethernet network with the Apple USB Ethernet Adapter. Small and light, it connects to the USB 2.0 port of your MacBook Air and provides an RJ-45 connector that supports 10/100BASE-T performance. 

Equivalent Part: USB 2.0 Hi-Speed to Ethernet NIC Network Adapter (U236-000-R)