Product color: silver gray Interface type: dual Type-C 3.1 high-speed interface Expansion port: USB3.0 * 2 + USB-C data / PD2 in 1 + PD charging + HDMI 4K HD + SD + TF Transmission rate: TYPE-C to USB3.1 theoretical speed 10Gbps, backward compatible with USB3.0 / USB2.0 / USB1.1 Power output: voltage: 5V-20V current 3A-5A power: 15W-60W Bare metal size: 110 * 28 * 10mm 1.Plug and Play: Easy operation. Seven ports can be used simultaneously. 4K HDMI, 40 Gbps Type C (100W PD and Display Output), USB-C data and 2 USB 3. 0 Ports, SD/TF card reader. Perfect companion for your to enhance productivity. 2.Extend Display: Equipped with both HDMI and Type C ports(support DisplayPort Alt Mode). HDMI supports up to 4K 30Hz, Type C supports up to 5K 60Hz or two 4K 60Hz displays, support dual independent display. 3.100W Power Delivery: Support up to 100W power delivery to charge both 13 inch 61W and 15 inch 87W MacBook Pro at full speed while having all data ports in use and delivering up to 4.5W (5V/900mA) of power per USB 3. 0 port. 5.Package Include:1*Type- C hub, 1*user manual.