Those are NOT by any stretch of the imagination "GPU's". They are ASIC-based miners in cases that for whatever reason use a GPU-style of footprint. Stupidest idea ever....
well not sure it is stupid but it is costly.
I can easily match it for 2000 bucks not 4000 bucks plus a case.
and I can build more efficient for more money.
for 4000 I could do 2 units using 1 s21 pro board each
you get 60+ 60th =120th and pull 800 watts a unit 1600 watts total