Philips PCVC740K99 User Manual page 26

Power supply
NOTE: Should you wish to connect this camera to a USB hub instead of your computer's
root hub, you will need to use a powered hub capable of delivering the operating power
specified below.
Power
Power compliance
Three modes for power supply:
Supplied via the USB cable
General USB specifications 1.1 for power requirements
Suspend: max. 500 µA
Power save: max. 40 mA
Operating: max. 100 mA (PCVC720K) or max. 150 mA (PCVC730K)
or max. 300 mA (PCVC740K)
26