Benfei, USB 3.0, A Male to RJ45 Ethernet 1000 Mbps, Gigabit Network Lan Adapter
BENFEI Ethernet Adapter. It adds a standard RJ45 port to your Ultrabook, notebook or Macbook Air for file transferring, video conferencing, gaming, and HD video streaming. BENFEI USB 3.0 to Ethernet Gigabit Adapter.