the winner had a USB hub with like a dozen USB miner dongles on it.
not what i would call a farm. more so just a hobby miner.
this is his so called "farm"

the electric usage would have been way under 500w so would cost him about $1 in electric a day for the chance of a over $200k reward. he was very lucky to get that reward. but it was not due to him having a massive farm..
with all blocks of all pools there is always one asic that solves the block. always.. his chance of solving another one is probably more then 400 years away. so it was pure luck he had the solution. and also luck that he chose to use a pool with suck a large reward which was specified to the solution giver instead of sharing it out amongst everyone
Good stuff. Idk there is something device that work like that, I thought all mining devices particularly for bitcoin mining only work on asic devices?
Maybe you can mention what's the name of this USB hub particularly it's brand. It's worth to know about it.