MicroBT Whatsminer M60S vs MicroBT Whatsminer M66S

Mining profitability comparison for Bitcoin (BTC), Bitcoin Cash (BCH)

★ MicroBT Whatsminer M66S is more efficient for Bitcoin mining

Verdict: MicroBT Whatsminer M60S vs MicroBT Whatsminer M66S

For Bitcoin mining, the MicroBT Whatsminer M66S is the more efficient choice, delivering roughly 60% more hashrate per watt than the MicroBT Whatsminer M60S. Bottom line: if power efficiency is your priority, the MicroBT Whatsminer M66S is the stronger pick — but confirm with your real electricity rate and current hardware prices below, since acquisition cost ultimately drives ROI.

Specifications

Spec MicroBT Whatsminer M60S MicroBT Whatsminer M66S
Type ASIC ASIC
Algorithm
Hashrate (BTC) 186 TH/s 298 TH/s
Power Draw 3441 W 3441 W
Efficiency 18.5 J/TH 11.5 J/TH
Supported Coins BTC, BCH BTC, BCH
Release Year N/A N/A

Hashrate & Efficiency per Coin

Coin MicroBT M60S HR MicroBT M66S HR Power A Power B More Efficient
BTC 186 TH/s 298 TH/s 3441 W 3441 W Whatsminer ✓
BCH 186 TH/s 298 TH/s 3441 W 3441 W Whatsminer ✓

Daily Electricity Cost at Different Rates

Electricity cost only (not including coin revenue). Lower is better for any given rate.

Electricity Rate MicroBT Whatsminer M60S MicroBT Whatsminer M66S Difference
$0.04/kWh $3.30 $3.30 ≈ Equal
$0.06/kWh $4.96 $4.96 ≈ Equal
$0.07/kWh $5.78 $5.78 ≈ Equal
$0.1/kWh $8.26 $8.26 ≈ Equal
$0.12/kWh $9.91 $9.91 ≈ Equal
$0.15/kWh $12.39 $12.39 ≈ Equal
$0.2/kWh $16.52 $16.52 ≈ Equal

Pros & Cons

MicroBT Whatsminer M60S

  • Lower cost-per-TH/s than comparable Bitmain S21 models
  • Proven reliability across large-scale mining deployments
  • Immersion-cooling compatible variant available (M60S+)
  • Less efficient than S21 Pro at 18.5 J/TH
  • Smaller firmware ecosystem than Antminer
  • Fewer authorised resellers outside Asia

MicroBT Whatsminer M66S

  • Best efficiency of any MicroBT air-cooled ASIC (11.5 J/TH)
  • 298 TH/s — highest raw hashrate in MicroBT's air-cooled lineup
  • Proven MicroBT reliability at scale; immersion variant available (M66S+)
  • High acquisition cost (~$5,000–$6,500)
  • 3,441 W draw requires dedicated high-amperage circuit
  • MicroBT firmware ecosystem smaller than Bitmain's

Frequently Asked Questions

Is the MicroBT Whatsminer M60S or MicroBT Whatsminer M66S more profitable for Bitcoin mining?

Based on hashrate-per-watt efficiency, the MicroBT Whatsminer M66S is more efficient for Bitcoin mining. However, actual profitability depends on your electricity cost, hardware acquisition price, and coin price — use the live calculator for exact numbers.

What is the power consumption difference between the MicroBT Whatsminer M60S and MicroBT Whatsminer M66S?

For Bitcoin mining, the MicroBT Whatsminer M60S draws 3441 W while the MicroBT Whatsminer M66S draws 3441 W. Both units have identical power draw.

Can both the MicroBT Whatsminer M60S and MicroBT Whatsminer M66S mine the same coins?

Yes — both units can mine Bitcoin (BTC) and Bitcoin Cash (BCH). You can switch between these coins with a simple pool configuration change.

Which unit has a better ROI?

ROI depends on hardware acquisition price, electricity cost, and coin price trajectory. The more efficient unit (better J/TH or hashrate per watt) will generally have a lower operating cost per coin mined, but the absolute ROI timeline is determined by the purchase price. Always model both units in the MiningReturns calculator with your specific electricity rate and current market prices.

More Comparisons

Calculate real profitability

Enter your electricity rate for live earnings estimates on both units.

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