The main limitations I found with the P10 were its power—a maximum continuous load of 1200 volt-amps (VA, footnote 1)—and the number of AC outlets it provides: 10.
PS Audio’s DirectStream Power Plant 20 AC regenerator (for short, they call it the P20) addresses both of those issues: It puts out more power than the P10, and it has 16 outlets.
Read on at
https://www.stereophile.com/content/ps-audio-directstream-power-plant-20-ac-regenerator