USB 3.0 Ethernet adapter and three-port hub provides a wired connectivity option with lightning-fast transfer speeds when there is weak or no Wi-Fi network available. Three-port hub expands your device's productivity capabilities by simply plugging in your peripheral accessories. USB 3.0 technology supports transfer rates up to 5 Gbps, which is 10 times faster than USB 2.0. After a one-time driver download via Wi-Fi and subsequent installation, the adapter simply needs to be plugged into your device, and it is automatically ready to go. RJ-45 connector supports 10/100/1000 BASE-T performance. Adapter is compatible with systems running Windows 8.1/8/7/Vista/XP as well as Mac OS X 10.6 and later. Adapter is perfect for laptops and ultrabooks that do not come with an Ethernet port.