Considering doing something like this, except instead of the barrel plug, I'll cut it off and wire it up to the 5v rail of my PSU. Anyone else try something similar, or make custom cables running beefier power wires? Seems like a good idea, then all the ports in USB hubs could be utilized.

https://www.gowifi.co.nz/images/stories/virtuemart/product/5VUSB.jpg