The ThinkPad One Link Dock, powered by Lenovo's revolutionary One Link technology transforms your new ThinkPad from a productivity powerhouse at school or in the office to a multimedia supercenter at home. Not only does the convenient One Link connector deliver super-fast data transfers with USB 3.0, crystal-clear HD audio and video through HDMI, it also charges your notebook, phones, and tablets while you work or play!This item is not compatible with X1 Carbon 1st Generation.