Connectivity . multipule ports to instantly transform your Surface into a PC. Ability to charge access external monitors keyboard mouse and more. Compability . works with Surface Pro 3 and 4 and Surface Book. Lightning fast . enables high speed transfers of video audio and data through a single cable. 1 Year WarrantyInstantly transform your Surface into a desktop PC. Plug in the Surface Connect cable to charge your device and access external monitors keyboard mouse and more. Find the perfect viewing angle or position your device to take advantage of the robust pen capabilities. All the ports you need With two high-definition video ports a Gigabit Ethernet port four high-speed USB 3.0 ports and an audio output you\'ve got all the connections you need in a sleek compact design. Lightning fast with minimalist design Surface Dock uses Surface Connect technology which enables high-speed transfer of video audio and data over a single cable keeping your desk clutter-free. It also has a Gigabit Ethernet port giving you a fast reliable connection to your network. Easy setup Surface Dock is quick and easy to set up. Connect your peripherals to Surface Dock and then attach the magnetic Surface Connect cable to your device. It\'s that easy..