TYPE-C to USB3.1 male, backward compatible with USB3.0.USB2.0, USB1.1USB3.0 standard port, theoretical transmission speed 5Gbps, backward compatible with USB2.0, USB1.1HDMI 4K HD video output, 1080P/60Hz refresh rate / 4K/30Hz refresh rate.PD2.0 charging protocol, 20V/5A 100W electric power. USB downstream current 500MA-900MAtype-c to Gigabit Ethernet port, backward compatible with 100M, 10M.Model: YC-750Type: Type C HUBFunction: 4K HDMI compatible + USB3.0 + PD + TF+For SDsize:11.3x4x1.45cmMaterial:Aluminum alloycolour:Space grayPackage Contents:1 x HUBOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.