USB Hub tansfer a single USB port into 4 USB data ports. you can get 1 USB 3.0 and 3 USB2.0 ports with your laptop. Support 4 ports to work at the same time, without any pressure, and keep the temperature in the middle range. Plug and play, no need driver, easy to use. USB3.0 Super Speed: 1*USB 3.0 and 3*USB 2.0. The USB 3.0 supports super faster data transfer up to 5Gbps which is 10X faster than USB 2.0 (480 Mbps), which allows you to transfer datas in just seconds; USB extension hub was built in OTG function chip, it can easily connect the mouse, keyboard, USB disk, and other USB devices.