TP-Link UE200 Usb to Lan 10/100Mbps Ethernet Network Adapter 
UE200 adds Ethernet network connectivity to those devices without Ethernet LAN port, such as Ultrabook or Macbook Air, through a commonly used USB 2.0 port, also being backward compatible with USB 1.1 standard. Innovative folding design makes UE200 an ideal gadget on the go.
 
Expand the Connectivity
Compact and Portable Design
Fast and Stable Data Connection
Plug & Play with increased compatibility