I'd think that this has to be an issue some of the time, right? Do I have to worry about plugging a World 2.1 or a PLX 3002 into my basement electric, or into the community power strip at the local pub? I see the PLX 3002 needs 10A. I don't know what current the 2.1 would need, because it's not in the spec sheet. Is amperage the way to sensibly judge the available juice? Thanks for the course in safe wiring!