The JDD320 is designed to keep all the ports on one side for easy cable management. This 6-in-1 Ultradrive Mini-dock™ enables you to get more from your Microsoft® Surface™ Pro by adding two USB™ 3.0 Type-A ports, a 4K HDMI™ port and a mini DisplayPort™ as well as a memory card reader/writer port. The USB™ Type-A 3.0 ports allow you to connect USB™ peripherals such as a storage device, keyboard, mouse, etc., and you can easily connect a 4K display via HDMI™ or mini DisplayPort™
