No driver or external power required. This 6-in-1 Ultradriveminidock 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 (only one output is supported at once).