Nightmare live experience - with interesting learnings on connecting keyboards via USB vs. MIDI cable

I bought a small, aluminum, 7-port powered usb for $65. The way they work, the first 4 ports (nearest power input) split an even voltage which is enough to power most things. The last 3 ports have a reduced voltage for less consuming items. So, if I use more than 4 ports on the hub, my usb mouse would be moved to port 5, as it is battery powered. I have done a ton of research on this to know what I was getting into before I pulled the trigger. Experiment with one device loaded then add devices on and watch your load increase. It’s like overloading a cheap extension cord…CPU will heat up quickly.