Material: plastic. Color: black. Size: 4.5x2x10.5cm. Working voltage: 5V. Working current: 500mA. 4 USB port splitter, when your laptop doesn't have enough USB port, you can use it to solve the problem. plugging and play, you can quickly use it after plugging in and you don't need to manually install any drivers. Provide 4 USB port, USB 3.0 hub, built-in current overload short circuit protection device. USB3.0 interface, the theoretical maximum speed is up to 5GB/s, and backward compatible with USB 2.0/1.1 standard specifications. Current protection function, support overload voltage and instantaneous current protection function, safe and convenient to use. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1* set USB hub 3.0 splitter. Due 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