1: 4K HDMI Video Output 4K/30Hz, 4K UHD resolution, direct stream 4K (3840x2160/30Hz) UHD to HDTV, mirror or extend the display monitors, or Projectors, no blur and delay. 2:USB 3.0 Port Support 5Gb/s data speed transmission,10x faster than USB 2.0 (480 Mbps),no need other software or drivers, just plug in, allow to connect USB flash drive, hard drive, keyboard, mouse, printer, thumb drive, USB sticks, MP3 player etc. 3: USB C Power Charging Port Up to 60W of power, stay power for best performace. Specification Materials: Aluminum Alloy & ABS Color: Sliver Plug & Play Do not require any software or driver All interfaces work at a time! Aluminum Slim Design & Quick Expansion. Has EMI protection to prevent interfere with devices. Broad Compatibility : The USB 3.1 type c multiport Adapter works well with USB-C 3.1 port (Thunderbolt 3 compatible) devices,and Type C PC, s8/s9 plus. And also monitor & projector with HDMI port. Tips: Only works for devices whose USB C port supports data transfer and power in as well as video out functions (DP Alt Mode). Package Included: 1 pcs 3-in-1 USB C to HDMI Multiport Adapter.