TeckNet Aluminum 3-Port USB 3.0 Hub with RJ45 10/100/1000 Gigabit Ethernet Adapter Converter LAN Wired USB Network Adapter for Ultrabooks, Notebooks, Tablets and More Instantly adds 3 extra USB 3.0 SuperSpeed ports and 1 x RJ45 gigabit ethernet port to your ultrabooks, notebooks and tablets featuring USB interfaces and enjoy data transfer rates of up to 5Gbps, backwards compatibile with 10/100 ethernet or USB 2.0/1.1 devices . Compact, lightweight, portable, Tecknet USB 3.0 hub ensures a neat and uncluttered arrangement of all connections making sure that plugs and cables do not interfere with each other. Perfect as an external extension solution. Supports IPv4/IPv6 protocols, dual channel transfer mode, auto transfer and data stream reversing regulation. Supports Hot Swap and Plug & Play on all USB ports. Built-in surge protection keeps your devices and data safe. Blue LED indicates normal operation. What you get: 1 TeckNet 3-Port USB and Ethernet Hub, 1 User Manual. Enjoy 18-month warranty, free lifetime technical support and friendly customer service.