Ugreen 20270 USB 2.0 High Speed 4-port Hub allows you to connect multiple USB devices to a single USB port. Then you connect your keyboard, mouse, camera, printer, PC fans etc on your PC at the same time. It is USB 2.0 standard and offers data transfer rate up to 480 Mbps. 1M length convenient to extend your USB devices to your desk. 6 Months Warranty