Here's What Every Different USB Port Type Actually Means

C, and USB Type-B ports all provide data transfers and power delivery, though the latter is much less common on modern ...
Ars Technica

Charging phones off of USB ports - whats the amp difference between USB 2.0 and 3.0?

I've looked at the manufacturer specs and can't find anything. I like to charge my phones off of the USB ports from the MB. How many amps does each deliver? Are USB 2.0 and 3.0 specs the same? However ...