Buy on Amazon : http://www.amazon.com/gp/product/B00EFDHIFI?tag=catfoodrevi0a-20

Ableconn USB3E1000 SuperSpeed USB 3.0 to 10/100/1000 Gigabit Ethernet Network Adapter for Windows

Slim stylish aluminum case
Built with ASIX AX88179 chipset
Automatic driver installation in Windows 8 7 Vista XP and Surface Pro Support Mac OS X and Linux kernel 26 and later
Powered directly from the USB ports and low power consumption with IEEE 8023az Energy Efficient Ethernet
High efficient with IPv4IPv6 packet Checksum Offload Engine to reduce CPU loading