I was reading this Three Monitors For Every User and there were some comments about rear USB ports being able to deliver more power than front USB ports because they are directly connected to the motherboard and closer to the power supply (by circuit board runs). Even though the front USB ports may have connectors farther from the power supply, and there are cables from the motherboard to the front ports, I think that the difference in power would be negligible (unless the case is over 5 meters long). Anyone know for sure if they are the same or different?
Note that I'm not talking about an older case where the front might have been USB 1.1 and the rear USB 2.0. A modern case would have USB 2.0 on all ports. And of course using a powered hub would deliver plenty of power.
Answer
The location on the case is not going to determine whether it is a high power or low power port. The motherboard manufacturer can choose to provide high power or low power ports and they may be on the motherboard directly (at the rear) or just headers that are connected via a cable to the front ports on the case. It would vary depending on the motherboard and how things are hooked up inside the case.
True, there is certainly a tiny bit of voltage drop over a longer distance, but that's not going to affect the overall output much.
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