Microsoft Surface Dock 1661 Black with 90W ac adapter used

Compatibility: Surface go, surface laptop, surface laptop 2, surface pro, surface pro 3, surface pro 4,surface pro 6, surface book, surface book 2 2x Mini display ports, 1x Gigabit Ethernet port 4 USB 3.0 ports, 1x audio out port Magnetic surface connect cable. Transform your surface into a desktop PC by plugging in your dock with the surface connect cable. External power supply High speed data transferring 90W ac adapter Turn your ultraportable Surface into a desktop PC and boost your productivity with Surface Dock. Compatibility - Surface Pro 3, Surface Pro 4, Surface Book.