The hub is connected to a power supply to the power supply, without it, the power supply as a passive hub available, connection to the PC, he finds with a normal USB A connector, the other end of the connection cable is a combined USB A and USB B connector provided. So you can connect his phone and has 4 more USB ports are available, which can be used to transfer data or to charge other devices either.
One of the USB ports is designed as a Smart Port and is designed to support "smart charging". At this port my smartphone invites curiously enough on the slowest.
Recommended!