Add 4 usb 30 hub ports plus 3 dedicated usb charging ports 7 total through a single usb 30 host connection the st4300u3c3 usb 30 hub enables simultaneous data hub and usb charging functionality by adding three dedicated usb charge ports as well as four usb 30 data ports for a total of seven ports all through a single usb 30 host connection the usb hub ports are compliant with the superspeed usb 30 specification offering data transfer rates up to 5 gbps and are backward compati