Mining Calculator MicroBT Whatsminer M31S+

The Whatsminer M31S+ is a classic representative of the MicroBT engineering school: robust, extremely utilitarian, and built with a focus on reliability. Released in late 2020, this unit became a response to the flagships of competitors, offering a solid 80 TH/s in a signature, recognizable design. The M31S+ never chased elegance; its philosophy is maximum hashrate density for its size. It was and remains a “workhorse,” designed for heavy and monotonous labor on an industrial scale.

The key issue that defines the fate of this model today is its energy efficiency, stuck at 42 W/Th. Its 3360 W appetite makes it a direct competitor to the Antminer S19 and Avalon 1166 Pro, not only in hashrate but also in electricity bills. In the current environment, where operational costs have come to the forefront, such a metric is a stigma. This miner is an irreconcilable enemy of the expensive outlet and can only be profitable in locations with extremely low electricity costs.

The M31S+ design is MicroBT’s calling card. Instead of the standard “brick,” we see an elongated and narrow “loaf-shaped” casing with a power supply unit integrated on top. This layout allows for denser placement of miners in racks but requires a specific approach to airflow management. Two fans, operating at high speeds, create a noise level of 70 dB – still very loud for any non-specialized room, but slightly quieter than many analogues with four coolers.

In conclusion, the Whatsminer M31S+ is a powerful veteran whose time on the front lines has passed. Today, its place is on the secondary market, where it attracts with a low price per terahash and a reputation as an “unkillable” machine. It is a tool for experienced miners who clearly understand the economics of the process and have access to cheap energy resources. For everyone else, it will be a vivid lesson in how quickly power consumption turns a powerful miner into an expensive space heater. It is a hammer in a world where surgical scalpels are increasingly demanded.