4K High-Definition Output: Just connect the usb c multiport adapter to HDMI port, and you can instantly achieve vivid 4K@30Hz (3840x2160) video and audio transmission, which can be mirrored or expanded. Transfer vivid on-screen 3D effects from your laptop screen to monitors, projectors, HDTVs, and more. USB C hubs give you more workspace and are perfect for home offices. 5Gbps High-Speed File Transfer: This laptop dock has built-in USB 3.0 and USB 2.0 ports, which can simultaneously meet 5Gbps high-speed data transfer and a wide range of applications.