Specifications:Material: Aluminum alloy+ABS+Silicone+Zine-alloyColor: GreyInterface: 3 * USB2.0 PortTransmission Speed: up to 480MbpsPower Voltage: +5V DC±10%Cable Length: approx. 1.2M USB CableItem Weight: 173g / 6.10ozItem Size: 116 * 103 * 21mm / 4.57 * 4.06 * 0.83inPackage Size: 16.7 * 13.7 * 3.7cm / 6.57 * 5.39 * 1.46inPackage Weight: 303g / 10.69ozIt also supports connecting external power supply via the micro USB interface.Easy to connect to most peripheral devices, such as mouse, keyboard, USB flash drives, smartphone, etc.Package List:1 * USB-HUBDue to different lighting and screen settings, the color of the item may be slightly different from the picture.Please allow for slight size differences due to manual measurements.Package includes main product only