So, a long-awaited update of the calculating boards:
https://photos.app.[Suspicious link removed]/5GkEsYtgRKTGMCUZA
https://i.ibb.co/3s571Vx/01.jpgNow it contains specialized hashing chips (ASIC). It is a little more expensive than mining chips, but faster. Power consumption is reduced to ~90W per device. This solution allows to use of passive convection cooling or simple external airflow.
At the same time, bitmine chips seem to be more common.
So, both solutions are valid.
