Whatsminer M70 Review: 214 to 242 TH/s Air Cooled ASIC (2026)

Manufacturer

MicroBT

Model

Whatsminer M70

Hashrate

214 to 242 TH/s (242 TH/s in overclock)

Efficiency

~14.5 J/TH

Power Draw

About 3,140 to 5,000 W (depending on power mode)

Cooling

Air cooled

Monthly electricity (at $0.07/kWh, 24/7)

~$158 to $252 (3.14 to 5.0 kW × 720h × $0.07)

Price

Quote on request: Whatsminer M70 availability and quote

At ~14.5 J/TH, the M70 uses about 14.5 joules for every terahash of work. For a 242 TH/s machine: 242 TH/s × 14.5 J/TH = ~3,509 W. At $0.07/kWh, a typical 3,500 W draw comes to about $176 a month in electricity. For side by side planning, the M70S is rated at ~13.5 J/TH, and each 1 J/TH at a typical 3,500 W draw is worth about $13 to $14 a month at this rate, so you can model either machine over a multi year hold.

The M70 is a strong fit when you want top tier bitcoin hashrate on standard air cooled racks with a lower upfront hardware outlay, whether you are hosting for the first time or adding capacity to an existing fleet. Use our profitability calculator to model both scenarios with current prices.

The M70 is air cooled and compatible with our Southeast Texas facility's standard air cooled racks. No special infrastructure is required beyond a standard ASIC power supply and racking position. All three power draw configurations (about 3,140 to 5,000 W) are supported.

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First time hosted miners who want to start with a top tier air cooled machine at the lowest hardware cost in the M70 series

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Operators expanding a fleet at a modest cost per added unit

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Short to medium holding periods where a lower upfront hardware outlay fits the plan