More performance for your laptop. Surface Dock 2 turns your Surface into a desktop PC with a 199W power adapter to charge most Surface devices, plus USB-C®¹ ports that support two 4K monitors at 60 Hz. Just plug in the Surface Connect cable to charge your device and use external monitors, a keyboard, mouse, and other peripherals. Surface Book 3 (13.5-inch and 15-inch)? Surface Pro 7,8, and 9? Surface Pro X? Surface Laptop 3 (13.5-inch and 15-inch)? Supports two 4K displays at 30 Hz:? Surface Go 2 Surface Pro 6? Surface Pro (5th gen)? Surface Laptop 2? Surface Laptop (1st gen)? Surface Go? Surface Book 2 (13.5-inch and 15-inch)? Not compatible with:? Surface Pro 4? Surface Pro 3? Surface Book (1st gen)? 130 mm × 70 mm × 30 mm (5.12 in × 2.75 in × 1.18 in)? ? 515 g (1.13 lb) ? ? Power adapter 199 W? ? Supports dual 4K at 60 Hz? ? Surface Connect cable (80 cm)? ? 2 front USB-C® ports (10 Gbps, 15 W)? ? 2 rear USB-C® ports (10 Gbps) with video enabled (7.5 W) ? 2 rear USB-A 3.2 ports (10 Gbps, 7.5 W), 3.5 mm audio in/out? ? 1 Gigabit Ethernet? ? Security lock support (Kensington compatible) ? ?