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MicroBT Whatsminer M21S

MicroBT Whatsminer M21S

Hashrate 56.0 TH/s Power 3,360 W Efficiency 60.0 J/TH
VS
Whatsminer M56

Whatsminer M56

Hashrate 194.0 TH/s Power 5,550 W Efficiency 28.6 J/TH

MicroBT Whatsminer M21S vs Whatsminer M56

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

MicroBT Whatsminer M21S Specification Whatsminer M56
56.0 TH/s Hashrate 194.0 TH/s
3,360 W Power Consumption 5,550 W
60.0 J/TH Efficiency 28.6 J/TH
Noise Level 50 dB
12,500.0 kg Weight 13.0 kg
11,464 BTU/hr BTU Output 18,937 BTU/hr
22/100 Home Mining Score 44/100
Release Year
SHA-256 Algorithm SHA-256
MicroBT Manufacturer MicroBT

Profitability Comparison

$/kWh

MicroBT Whatsminer M21S

Daily Revenue 0.00002427 BTC $1.80
Daily Electricity -$8.06
Daily Profit -$6.26
Monthly -$187.79
Yearly -$2,284.75

Whatsminer M56

Daily Revenue 0.00008408 BTC $6.25
Daily Electricity -$13.32
Daily Profit -$7.07
Monthly -$212.07
Yearly -$2,580.17

Based on BTC price of $74,343 and current network difficulty as of Mar 16, 2026. Actual results vary.

Verdict

Based on specs, the Whatsminer M56 offers 52% better efficiency at 28.6 J/TH compared to the MicroBT Whatsminer M21S at 60.0 J/TH. This directly impacts daily operating costs and long-term profitability.

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Whatsminer M56

Score: 44/100. 50 dB noise level.

Best for Efficiency

Whatsminer M56

28.6 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the MicroBT Whatsminer M21S or Whatsminer M56 more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21S is more profitable at $-6.26/day compared to $-7.07/day for the Whatsminer M56. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the MicroBT Whatsminer M21S or Whatsminer M56?

The Whatsminer M56 is quieter at 50 dB compared to the MicroBT Whatsminer M21S at 0 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the MicroBT Whatsminer M21S or Whatsminer M56?

The Whatsminer M56 scores 44/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M21S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between MicroBT Whatsminer M21S and Whatsminer M56?

The MicroBT Whatsminer M21S runs at 60.0 J/TH while the Whatsminer M56 runs at 28.6 J/TH — a difference of 31.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.