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[HackPerception]

@Lionel - It's USB 3, you'd probably have to draw several hundred Mb/s to start impacting performance. That said, USB is critical for tracking data so it definitely is theoretically possible to draw enough bandwidth with that port that you start to max out the BUS, both on the HMD and the MB but I've yet to hear of a scenario where that's occurred and you'd see UI warnings.

When using wireless, it will just increase your current draw which could theoretically lower your overall play time. We typically don't recommend you draw more than 900mA @ 5V from the onboard USB.