With the horsepower needed to power productivity on mobile workstations, the ThinkPad Mini Dock Plus with USB 3.0 - 90W grows capability without growing in size. The ultimate docking solution includes a wide range of video outputs, including 7 USB ports, and support for up to 3 external monitors (system graphics dependent). Now enhanced with SuperSpeed USB 3.0 technology for supported systems.1x VGA, 2x DVI-D, 2x Display Port, 1x USB 3.0, 6x USB 2.0, Gigabit Ethernet, Security Key and Lock, Cable Lock Slot, Maximum supported external monitors: Up to 3 (system graphics-dependent). Includes ThinkPad 90W AC Adapter, Notebook power button mirroring. Compatible with the following 65w and 90w ThinkPad models: L412, L420, L430, L512, L520, L530, T400s, T410, T410i, T410si, T410s, T420, T420s, T420si, T430, T430i, T430s, T430si, T430u, T431s, T510, T510i, T530, T530i, X220, X230, X230i. Also compatible with the DualCore models: T520 and T520i. NOT recommended if the system AC adapter is 170W.