TRIPP LITE USB 3.0 Superspeed to Gigabit EtherNet, RJ45, LAN, NIC, Wired Network Adapter (U336-000-GB-AL) Connects your computer, laptop or Ultrabook to a network or the Internet without buying and installing an internal Ethernet card Supports 10/100/1000 auto-sensing and Wake-on-LAN LEDs indicate power, network connection and data transfer Compatible with Windows, Mac and Linux operating systems Plug and play-no drivers or external power supply needed 3-year limited warranty