Ravtron Transform a single USB 3.0 port from a notebook, tablet, or desktop into 4 Ports USB 3.0 with 1Port performing double duty as charging ports with the Powered USB 3.0 Slim Aluminium Hub. Each of the 4 ports is outfitted with USB 3.0 technology that enables it to transfer data at rates of up to 5 Gb/s. When used as a stand-alone hub, the fast charging ports can each deliver up to 2.4A of current for recharging Tablets, Smartphones, and other power-hungry devices.