Compatibility: Surface Book 3 (13.5 in and 15 in), Surface Pro 7, Surface Pro X, Surface Laptop 3 (13.5 in and 15 in), Surface Go 2. 199 W power supply charges any Surface device. Supports dual 4K monitors at 60 Hz. 4 x USB-C. 2 x USB-A. 1 x 3.5 mm in/out audio jack. 1 gigabit Ethernet. 5.12 x 2.75 x 1.18 in.