How efficient is the Whatsminer M66S?

The Whatsminer M66S runs at 18.5 J/TH — joules per terahash is the number that decides mining profitability. Hydro-cooled density play for industrial deployments.

How much power does the Whatsminer M66S use?

Typical wall draw is 5,513 W, which at a reference $0.10/kWh costs about $13.23 per day in electricity. Scale linearly to your own rate — the electricity price is the whole business.

Is the Whatsminer M66S suitable for home mining?

No — it is hydro-cooled and assumes facility infrastructure (liquid loops, dry coolers).

MicroBT · 2023

Whatsminer M66S

Hydro-cooled density play for industrial deployments.

Hashrate298 TH/s

Efficiency18.5 J/TH

Wall power5,513 W

Coolinghydro

Noisen/a (liquid)

Released2023

Energy $/day @ $0.10/kWh$13.23

The longer story

The M66S is MicroBT’s hydro-cooled density play: immersion/hydro deployment, high per-unit hashrate, and the quiet-but-infrastructure-heavy profile that defines liquid-cooled mining. It competes head-on with the S21 Hydro for industrial liquid builds.

It suits facilities designed for liquid cooling that want MicroBT’s silicon in the loop. Like its Bitmain counterpart, it makes no sense as a first machine — the cooling infrastructure is the actual purchase.

Manufacturer site

Quick answers

How efficient is the Whatsminer M66S?: The Whatsminer M66S runs at 18.5 J/TH — joules per terahash is the number that decides mining profitability. Hydro-cooled density play for industrial deployments.
How much power does the Whatsminer M66S use?: Typical wall draw is 5,513 W, which at a reference $0.10/kWh costs about $13.23 per day in electricity. Scale linearly to your own rate — the electricity price is the whole business.
Is the Whatsminer M66S suitable for home mining?: No — it is hydro-cooled and assumes facility infrastructure (liquid loops, dry coolers).

Compare & alternatives

antminer-s21-hydro vs whatsminer-m66s Antminer S21 Hydro

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