This FireWire hub is powered and is used to power the F2, F3 or F4 Series camera when connected to a notebook or any other non-powered bus. The hub sits inline between the FireWire adapter and the camera and includes a power supply. Note that the power supply accepts 100-240V allowing it to be used anywhere in the world. However, and an adapter may be required when connecting to a non-North American style receptacle. A FireWire cable (to connect from the PC to the hub) is included. Use your existing FireWire cable to connect from the powered hub to camera.