Designed exclusively for Surface Pro 3, Docking Station lets you instantly transform your device into a desktop PC, giving you easy access to your favorite accessories. Instant office Connect to your HD monitors, wired network, audio system, full-size keyboard, printer and more, while charging your Surface Pro 3. 3 USB 3.0 ports, 2 USB 2.0 ports, Gigabit Ethernet port, 3.5mm audio input/output connection, Mini DisplayPort Security lock slot Innovative design leaves the Mini DisplayPort and USB 3.0 port on your device available for use when docked