Tripp Lite USB 3.0 SuperSpeed to Gigabit Ethernet NIC Network Adapter 10/100/1000 Mbps(U336-000-R) USB 3.0 Ethernet Adapter allows your computer to instantly connect to a network through a USB port - no need to open up your computer case to add an internal Ethernet card Instantly connect to a 10/100/1000 Mbps network through a USB port The adapter is compact and is USB bus-powered; requires no external power adapter Compatible with Windows, Mac, and Linux and compliant with USB 3.0 specifications 3-year limited warranty