Review — Authorized MicroBT Dealer
Whatsminer M70 Review: 214–242 TH/s Air-Cooled ASIC (2026)
The Whatsminer M70 is MicroBT's entry-level M70-generation air-cooled miner, delivering 214–242 TH/s at ~14.5 J/TH and ~3,140–3,500 W. It is the most affordable model in the series and suits operators prioritizing low upfront hardware cost over maximum efficiency.
We sell and host the Whatsminer M70 at our Southeast Texas facility. This review is based on the manufacturer's published specifications and our operational experience. We do not fabricate ratings or profit projections.
Specs at a Glance
| Manufacturer | MicroBT |
|---|---|
| Model | Whatsminer M70 |
| Hashrate | 214–242 TH/s (242 TH/s in overclock) |
| Efficiency | ~14.5 J/TH |
| Power Draw | ~3,140–3,500 W |
| Cooling | Air-cooled |
| Monthly electricity (at $0.07/kWh, 24/7) | ~$158–$176 (3.14–3.5 kW × 720h × $0.07) |
| Price | {{PRICE}} — see current price |
Performance and Efficiency
At ~14.5 J/TH, the M70 is approximately 7% less efficient than the M70S (~13.5 J/TH). For a 242 TH/s machine: 242 TH/s × 14.5 J/TH = ~3,509 W at peak. At $0.07/kWh, the monthly electricity cost difference between 14.5 and 13.5 J/TH on a ~3,500W machine is approximately $13–$14/month. Over a multi-year hold, this compounds into a meaningful cost difference favoring the M70S.
The M70's advantage is lower upfront cost. If the purchase price difference between M70 and M70S is significant, the M70 can make economic sense for shorter holding periods or budget-constrained operators. Use our profitability calculator to model both scenarios with current prices.
Hosting Suitability
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 (3,140W–3,500W) are supported.
Who Should Buy the M70?
- →Budget-conscious first-time miners who want to enter hosting at the lowest hardware cost in the M70 series
- →Operators testing fleet expansion at minimal incremental cost
- →Short-to-medium holding periods where the upfront cost difference vs. M70S matters more than long-term efficiency
M70 vs. M70S: Quick Comparison
| Factor | M70 | M70S |
|---|---|---|
| Hashrate | 214–242 TH/s | 226–258 TH/s |
| Efficiency | ~14.5 J/TH | ~13.5 J/TH (better) |
| Power draw | ~3,140–3,500 W | ~3,500 W |
| Best for | Lowest upfront cost | Long-term efficiency |
Frequently Asked Questions
What is the Whatsminer M70's hashrate?
The Whatsminer M70 delivers 214–242 TH/s. The 242 TH/s figure is achievable in overclock mode. Normal operating mode is typically at the lower end of the range.
How efficient is the Whatsminer M70?
The Whatsminer M70 operates at approximately 14.5 J/TH — meaning it consumes roughly 14.5 joules per terahash of computing work. This is less efficient than the M70S (~13.5 J/TH) but the M70 typically has a lower purchase price. The difference: at $0.07/kWh and 258 TH/s, a 1 J/TH efficiency gap translates to roughly $13–$14/month in additional electricity per machine.
How much power does the Whatsminer M70 use?
The Whatsminer M70 consumes approximately 3,140–3,500 W depending on operating mode. At $0.07/kWh hosted, this translates to approximately $158–$176/month in electricity.
Who should buy the Whatsminer M70?
The Whatsminer M70 is best suited for budget-conscious first-time miners who want to enter hosted mining at the lowest upfront hardware cost in the M70 series. Operators who plan to hold hardware long-term and prioritize electricity efficiency should consider the M70S instead.
Buy or host a Whatsminer M70
We are an authorized MicroBT dealer. Purchase the M70 and host it at our Southeast Texas facility for $0.07/kWh all-in.