MicroBT Whatsminer M20S vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M20S | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 68.0 TH/s | Hashrate | 31.0 TH/s |
| 3,360 W | Power Consumption | 1,860 W |
| 49.4 J/TH | Efficiency | 60.0 J/TH |
| — | Noise Level | — |
| 12,500.0 kg | Weight | 7,150.0 kg |
| 11,464 BTU/hr | BTU Output | 6,346 BTU/hr |
| 22/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M20S
MicroBT Whatsminer M21
Based on BTC price of $74,349 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the MicroBT Whatsminer M20S offers 18% better efficiency at 49.4 J/TH compared to the MicroBT Whatsminer M21 at 60.0 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
MicroBT Whatsminer M21Score: 28/100. 0 dB noise level.
Best for Efficiency
MicroBT Whatsminer M20S49.4 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the MicroBT Whatsminer M20S or MicroBT Whatsminer M21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.47/day compared to $-5.87/day for the MicroBT Whatsminer M20S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the MicroBT Whatsminer M20S or MicroBT Whatsminer M21?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the MicroBT Whatsminer M20S or MicroBT Whatsminer M21?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M20S). 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 M20S and MicroBT Whatsminer M21?
The MicroBT Whatsminer M20S runs at 49.4 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 10.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.