MicroBT Whatsminer M21 vs Whatsminer M63
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | Whatsminer M63 |
|---|---|---|
| 31.0 TH/s | Hashrate | 360.0 TH/s |
| 1,860 W | Power Consumption | 7,200 W |
| 60.0 J/TH | Efficiency | 20.0 J/TH |
| — | Noise Level | 50 dB |
| 7,150.0 kg | Weight | 27.5 kg |
| 6,346 BTU/hr | BTU Output | 24,566 BTU/hr |
| 28/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
Whatsminer M63
Based on BTC price of $74,658 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Whatsminer M63 wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The MicroBT Whatsminer M21 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M63Score: 44/100. 50 dB noise level.
Best for Efficiency
Whatsminer M6320.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the MicroBT Whatsminer M21 or Whatsminer M63 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.46/day compared to $-5.63/day for the Whatsminer M63. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the MicroBT Whatsminer M21 or Whatsminer M63?
The Whatsminer M63 is quieter at 50 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the MicroBT Whatsminer M21 or Whatsminer M63?
The Whatsminer M63 scores 44/100 on our Home Mining Score (vs 28/100 for the MicroBT Whatsminer M21). 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 M21 and Whatsminer M63?
The MicroBT Whatsminer M21 runs at 60.0 J/TH while the Whatsminer M63 runs at 20.0 J/TH — a difference of 40.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.