You know they try to squeeze a lot out of the psu's both of them would be better off at 2900 watts not 3268 or 3306 watts.
All the newer gear from bitmain cannon and microbe have Oem psu's that you have to use or the gear won't work and all the psu's push to the limit. PSu failure is common and getting replacement psu's is difficult.
Also a lot of the stock firmware does not allow for simple under clocking.
Nothing new but you would think that one of these companies would push a firmware that allows for 5 speeds or better. Much like braiins or vnish do.
As for the m50 vs the m30s++ it is bottom of the line new compared to top of the line old.
So not that fair to compare the m30s++ to the m50
the m50s is 126 at 26 watts. and that is pretty good compared to the m30s++ 112 and 31 watts
I have had most of my microbit gear fail not a real fan of them.
But the water block solution they have is a rack holding 15 servers and a cooling radiator. the unit will do 90 to 150 kwatts
the water block solution from bitmain is a container holding 200 units it will do 1 megawatt
I could swing the microbt at 150 kwatts maybe 2 of them but the bitmain need more power than I have 1 megawatt is more than the 800kwatts I have at the new site.
My guess is the bitmain gear (water block) might be more durable. I just wish it was in a smaller sized cooling setup maybe a 250kwatt sized complete system with 40 s19xp water units
