The ThinkPad OneLink Pro Dock, powered by Lenovo's revolutionary OneLink technology transforms your new ThinkPad into a full-featured machine for the office or at home. Not only does the convenient OneLink connector deliver super-fast data transfers with USB 3.0, crystal-clear HD audio and driver-free pass through dual video, it also charges your notebook, phones and tablets while you work or play! Connect to simplicity today with the ThinkPad OneLink Pro Dock!OneLink delivers data, driver-free dual video, and power through a single convenient connector Unlike USB docks, the Onelink Pro Dock delivers video with no compression, no drivers and no impact on image quality and notebook performance Power button on the dock mirrors the system power button