With usb ports on laptops becoming a precious commodity an external hub can be the answer to maintaining optimal productivity the uh4000c usb 30 4 port hub charger ensures you can connect all your peripheral desktop accessories to your laptop as well as quickly charge your smartphone or tablet leveraging usb 30 technology each of the four ports can support lightning fast transfer speeds so you can work more efficiently the ports also double as chargers ensuring the battery on your fav