Compatibility | ThinkPads: T550, T450s, T450, L450, X250, T540p, T440p, T440s, T440, W540, X240, X230s, T431s, X240s, L440, L540, ThinkPad X1 Carbon (20BS, 20BT), ThinkPad X1 Carbon (20A7, 20A8), ThinkPad Helix, ThinkPad Yoga, ThinkPad Yoga 14 (Type 20DM, 20DN), ThinkPad Yoga 15, ThinkPad 10, ThinkPad 8 (with 4X90F84314 Think8 USB Cable), ThinkPad X140e, ThinkPad 11e (Type 20D9, 20DA) , ThinkPad Yoga 11e (Type 20D9, 20DA).Docks: USB 3.0 Dock, Basic USB 3.0 Dock, Onelink Dock, Onelink Pro Dock, Basic Dock, Basic Dock 65W and 90 W, Pro Dock 65W and 90W, Ultra Dock 90W, Ultra Dock 135W |