k5054 wrote:
continuously drawing power, even when not recharging/powering a USB device
Probably. But not much. I suspect it would be difficult to have them 'turn off' based on the connector. It would require a mechanical switch in the connector (which would of course break over time.) Do USB Sockets Draw Power When They Are Not Being Used?[^]
k5054 wrote:
Secondly, are they fast-charge or not?
Depends on the socket. Just like with buying a charger. Certainly can be though. Search for USB-C The 4 Best Wall Outlets With USB Charging Ports of 2024 | Reviews by Wirecutter[^]