Surface Pro USB Hub Docking StationSpecial design usb hub for Surface Pro 6/ Pro 5/ Pro 4, with the multiport USB hub featuring 3 X USB 3.0 port, a 4K@30Hz HDMI port, a SD card slot and a Micro SD/TF slot. It is also a SD/TF card reader, and allowing you to connect a keyboard, mouse, USB driver, external disk to your Surface Pro. 4K HDMI Adapter for Surface ProSurface pro docking station supports the video resolution 1080P , up to 4K @30Hz and freely show your laptop's high-resolution display on most HDTV, monitor or projector with an HDMI port.