The Lenovo ThinkPad Ultra Dock Docking Station Type 40A2 04W3956 is a black docking station designed for Lenovo ThinkPad laptops. It features VGA, DisplayPort, Ethernet (RJ-45), DVI, HDMI, USB 3.0, and USB 2.0 ports. The item dimensions are 14" x 7" x 2". This unit is sold without a key and is unlocked. It is compatible with the ThinkPad product line and has model number 40A2. This product contains a chemical known to the State of California to cause cancer.