Product Overview : Optional external power via Micro USB Bc1.2 power output 3Port USB expansion with Usb3.0 5Gbps SuperSpeed 4K Ultra HD Hdmi This uHUB is a USB hub that combines 3 ports USB expansion over Usb3.0 SuperSpeed plus a 4K 30Hz Hdmi, offers you the efficient performance by the new generation chipset. Product Features : Perfect combination with Usb3.0 and Hdmi. Usb3.0 SuperSpeed data transfer (5Gbps), backward compatible with Usb2.0/1.1. With an optional power port (Micro Usb). By connecting to an external power supply, can supply power to peripheral devices. Designed and manufactured with Bc1.2 charging technology. Support Hdmi2.0 at 4K@30Hz Ultra HD video output, with Hdcp 2.2/ 1.4 specification. Usbc connector allows you to connect with Usbc equipped computer, tablet and smartphone, which equipped with Thunderbolt 3 port or Usbc port that supports data transfer function and DisplayPort Alt Mode (DP Alt Mode). LED indicator light.indicates the status of the Ethernet connection. Plug and play, without complicated driver installation.