Microsoft Surface Thunderbolt 4 Dock. Connectivity technology: Wired, Host interface: Thunderbolt 4. Ethernet LAN data rates: 2500 Mbit/s. Product colour: Black, Cable lock slot type: Kensington, Brand compatibility: Microsoft. Power source type: USB, Power connector: USB Type-C, Power supply: 165 W. Width: 150 mm, Depth: 75 mm, Height: 21.3 mm