Perfect Compatibility: This USB C hub is exclusively designed for Surface Pro 8, 9, and X laptops. It transforms 2 USB C ports into 7 ports (HD Multimedia Interface, RJ45, USB3.0 x 2, USB C, memory card slot, memory card slot). Simply plug and play, no drivers required. High Resolution: The USB C hub supports video resolutions up to 4K 60Hz/30Hz. Freely display high-definition 4K UHD 60Hz/30Hz or Full HD 1080P video from your laptop to your HDTV, monitor, or projector via the HD Multimedia Interface port. It's also backward compatible with 2K 1080p 720p 480p 360p resolutions. Fast Data Transfer: Experience ultra-fast 5Gbps data transfer via the Dual USB C expansion hub's USB 3.0 port hub. The transfer speed is incredibly fast, saving you valuable time. It's also USB 2.0 compatible and designed for keyboards and mice. Direct Power Supply & Convenient Accessories: The Dual USB C expansion hub supports USB C 100W direct power supply. The aluminum design ensures rapid heat dissipation. This docking station is a practical accessory for your Surface Pro 8, 9, and X laptops. Expansion Function: This USB C hub allows you to expand to 2 displays. You can work on different tasks across multiple monitors. It supports up to 4K 60Hz/30Hz displays via the HD Multimedia Interface port or up to 4K 30Hz displays via the USB C 4 port.