Mining Calculator MicroBT Whatsminer M31S

Let’s talk about a true veteran, a machine that embodies an entire era in mining — the Whatsminer M31S. Released in the spring of 2020, it was one of those sturdy workhorses that cemented MicroBT’s reputation as a manufacturer of reliable and powerful equipment. Its 76 TH/s was a solid figure for its time, but today it’s more a reminder of how far the industry has come.

But let’s be honest: its main enemy is the power outlet. With a power consumption of 3220 W, we get an efficiency level of 42 J/Th. This isn’t just bad, it’s absolutely uncompetitive by modern standards. Any current ASIC today is at least twice as efficient. This figure puts an end to the use of the M31S in any locations where electricity has to be paid for at market rates. It will burn more money than it brings in.

So why isn’t it in the dustbin of history yet? Because the Whatsminer M31S is built like an AK-47: simple, reliable, and with a huge margin of safety. The proprietary narrow and long casing, simple cooling system, overall fault tolerance — that’s what it’s valued for on the secondary market. This is a machine that will work no matter what. It’s bought not for profit, but for predictability and the reputation of indestructible hardware.

Ultimately, the Whatsminer M31S is a tool for a very niche market. Its place is with enthusiast garage miners or in industrial sites with virtually free electricity, where the extremely low purchase price outweighs the exorbitant operating costs. It’s not a business tool, but an enduring artifact for those who have access to very cheap fuel for this power-hungry, but incredibly reliable machine.