Lenovo Thinkpad Thunderbolt 3 230W Workstation Dock (40AN0230SA) - Connectivity: Front: 1 x USB Type-C (Thunderbolt 3 compatible), USB 3.1 Gen 2, 1 x 3.5 mm Stereo/Mic Combo Port, Rear: 1 x USB 3.1 Gen 2 (Always on), 3 x USB 3.1 Gen 2, 2 x HDMI, 2 x DisplayPort, RJ-45, 2 x AC Power Connector, 1 x Thunderbolt 3 Workstation Connector, Compatibility: Lenovo ThinkPad P52, P72, P1, X1 Extreme