I'd always do power and USB separate, especially when USB standards seem to change every few years, or you end up filling things with USB-A to USB-C adapters.
Except the standard takes many many years to develop and even more to institute as standard.
USB A was started in 1996... I still have USBa to mini floating around. USBa to USBC will be around for a long time.
I can live with that.
@ChainBreaker started
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I'd always do power and USB separate, especially when USB standards seem to change every few years, or you end up filling things with USB-A to USB-C adapters.