Specifically Designed for Surface Pro 9 This hub, developed specifically for the Surface Pro 9, converts two USB-C ports into six ports: (2 USB 3.0 ports, 1 PD charging port, 1 4K@60Hz HDMI port, 1 1000M Ethernet LAN port, and 1 TF card slot). It allows for simultaneous photo, video, and data transfer, as well as charging while connecting a keyboard or thumb drive. Note: If you are using a protective case, this Surface Pro 9 USB hub may not fit your Surface Pro 9. 4K HDMI & Fast Data TransferThis surface pro 9 USB dock Supports high-resolution 4K@60Hz HDMI display from Surface Pro 9 for hassle-free presentations, video conference, and watch movies on-the-go. Built-in TF slots for easy access to files from TF Memory Card. 2*3.0 USB ports are supporting data transmission speed rates of up to 5 Gbps, connect to your smart phone, tablet and other USB devices for data transmission. 1000M Network AdapterDesigned for plug-and-play connectivity between the Surface Pro 9 and wired netw