Raspberry is supplied with power from the hub. In addition, the HUB function is also used to power-hungry devices to connect. One power plug is then required! When traveling or at home also Prima to charge multiple USB devices: camera, 2xLED-bicycle lights, mobile phone. Top! (Continuous operation is still pending.) Can I still recommended! ADDENDUM: Unfortunately, the power supply makes a high frequency ringing noise, which is very uncomfortable. For me it is now no longer unattended and permanently. It is thus no longer be used for the Raspberry. Pity!
