Microsoft Docking Station for Surface Pro 3 3Q9-00001 Docking Station for Microsoft Surface Pro 3 Comes with an Ethernet port, Mini DisplayPort and five USB ports three USB 3 and two USB 2.0 ports you can attach your HD monitor full size keyboard, printer The mini DisplayPort connection delivers high-definition video resolution of up to 3840 x 2600 DPI Docking Station includes five USB ports three USB 3.0 two USB 2.0 ports Will work with surface pro 4 and 2017 surface with an adaptor not included.