Oh ****
I didn't pay attention to the name as when I see an -ov ending name I'm sure I will forget it the next second, but when you mentioned engineers and mining, this legkodymov, oh yeah! The guy has one hell of a history book with bitcoin!
Thanks to legkodymov.
S5 was based on legkodymov's serial power design, and its power consumption at wall is 0.51W/G.
S2-replace PCB will be released after Chinese Spring Festival, and it will be serial powered too, and its power consumpiton at wall will be less than 0.4W/G.
This now brings the question, (one that probably nobody can answer) why would this guy who could have literally swum in coins like Scrooge McDuck would be laundering money? Was a really a case of defiance against the state and or just unlimited greed hidden behind claims of freedom?