Pedantry: That should be obvious from the units, wouldn't it? (Volts for voltage, amperes for current, ohms for resistance) I do agree that the general public u

Pedantry: That should be obvious from the units, wouldn't it? (Volts for voltage, amperes for current, ohms for resistance) I do agree that the general public uses these interchangeably, bringing confusion :) As for a well-behaved device - there aren't very many of those, either. Fortunately, this is less of a problem with USB3 - more devices follow the spec closely.