About this item[High hash-rate but high efficiency]Brand new Whatsminer M20S 68TH which is the powerful asic bitcoin miner. Whatsminer M31S 68T mining machine with 80Thash/s (卤 5%) computer power, energy consumption is 3500W(+/- 5%), The power consumption ratio is 42J/TH[Strong environment carrying capacity] Working Temberature: -5 - 35 Centigrade. Working Humidity:5%RH~95%RH[East to...