ONLY for Surface Pro 9/Pro 8Specially designed for Microsoft Surface Pro 9/Pro 8. Can easily fulfill your daily use by extending two USB C port to 5 ports (1 X USB 3.0 port, 1 X USB 2.0 port, 1X 4K HDMI port, 1X USB C port (Audio + Data Transfer + PD Charging), 1X TF (Micro SD) card slot.Just plug and play, no driver needed.(*Note: It won't fit your Surface Pro 9/Pro 8 very well if you use a protective case.) Surface Pro 9/Pro 8 4K HDMI AdapterThis HDMI hub supports video resolution up to 4K@ 30Hz, backwards support 2K/ 1080p/ 720p/ 480p/ 360p resolutions. You can enjoy an ultra-high-definition visual experience by extending you Surface Laptop to a 4K effect HDTV/monitor/projector. Triple display flexibility docking station for surfaceTriple display ( Ultra HD 4K HDMI + USB-C Thunerbolt 4) + Surface Pro 8 modes.Using different monitors to do different projects will make your work/life more efficient.Support Extend Or Mirror Mode, HDMI Resolution up to 4K@30Hz, USB-C T