How can I tell whether or not a USB port is powered.?

I am having trouble loading a web cam. I fially have the software installed but it fails to load the driver. It recognise the new device as the correct camera but I am not sure if it is on or off or whether it is connected to a powered USB port.

All USB ports are powered. Unless the computer is turned off, the ports disabled in the BIOS or burned out from overload.

If the program recognises the camera then the port power is working… that’s where the camera is getting it’s power to be recognised.

USB Powered Mini A/C!

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