Thanks Beerman,

That all makes sense. I think the live amperage is helpful, but I'm not sure I need 30 outlets since I'll just be running 4 miners. Do they make smaller 30AMP PDUs for cheaper? I plan on running them continuously, or at least for 95% of the time. Also, the wiring actually runs along the ceiling of my basement so it could probably be changed if necessary. I looked at the existing outlet and there were only black, white, and neutral(copper)...no ground. Will this mean that the electrician will need to change the wiring anyway, or is there an alternative?

I really appreciate you taking the time to walk me through this. Please excuse my naivete.