Completely re-designed for a new generation of ThinkPads, snap into the ThinkPad Pro Dock and get connected to power, your Local Area Network/Internet and workplace accessories such as up two external displays, keyboard, mouse and printer so you can get more done faster. One of the dock’s USB ports also supports always-on mobile device charging, which means that you can charge your mobile phone or tablet, even when your notebook is away. Our unique physical alignment guarantees perfect notebook-dock alignment every time. **This does not come with an adapter or security keys. Part #’s: 04W3948, SD20A060038. Compatible Models: Lenovo ThinkPad L440, L450, L460, L470, L540, L560. Lenovo ThinkPad P50s, P51s. Lenovo ThinkPad T440, T440p, T440s, T450, T450s, T460, T460p, T460s, T470, T470p, T470s, T540p, T550, T560, T570, TP25.