USB 3.0 to Gigabit Ethernet Adapter, 1 port USB 3.0 connector and 1 port Ethernet port Plug and Play in Windows (XP/Vista/7/8/8.1), Mac OS X (10.9/10.10), Linux OS. Note: Driver required for Mac OS X (10.5-10.8)and Windows 10 (and above) Foldable and Portable design ideally suits your Ultrabook