MicroBT Whatsminer M21 vs Whatsminer M50
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | Whatsminer M50 |
|---|---|---|
| 31.0 TH/s | Hashrate | 114.0 TH/s |
| 1,860 W | Power Consumption | 3,306 W |
| 60.0 J/TH | Efficiency | 29.0 J/TH |
| — | Noise Level | 75 dB |
| 7,150.0 kg | Weight | 12.5 kg |
| 6,346 BTU/hr | BTU Output | 11,280 BTU/hr |
| 28/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
Whatsminer M50
Based on BTC price of $79,183 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Whatsminer M50 wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 268% more hashrate (31.0 vs 114.0 TH/s). That said, the MicroBT Whatsminer M21 isn't beaten everywhere — it still wins power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The MicroBT Whatsminer M21 and Whatsminer M50 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Whatsminer M50 268% more hashrate (31.0 vs 114.0 TH/s)
- MicroBT Whatsminer M21 44% better power draw (1,860 vs 3,306 W)
- Whatsminer M50 52% better efficiency (60.0 vs 29.0 J/TH)
- Whatsminer M50 100% better weight (7,150.0 vs 12.5 kg)
- Whatsminer M50 78% more heat output (6,346 vs 11,280 BTU/hr)
- Whatsminer M50 29% more home mining score (28.0 vs 36.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| MicroBT Whatsminer M21 | Metric | Whatsminer M50 |
|---|---|---|
| — | Upfront cost (MSRP) | $2,600 |
| -$3.30 | Daily net profit | -$3.65 |
| -$1,204 | Net after 1 year | -$3,933 |
| -$2,408 | Net after 2 years | -$5,265 |
| -$3,613 | Net after 3 years | -$6,598 |
| — | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M50Score: 36/100. 75 dB noise level.
Best for Efficiency
Whatsminer M5029.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M21 vs Whatsminer M50: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.30/day compared to $-3.65/day for the Whatsminer M50. 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 M50?
The Whatsminer M50 is quieter at 75 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 M50?
The Whatsminer M50 scores 36/100 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 M50?
The MicroBT Whatsminer M21 runs at 60.0 J/TH while the Whatsminer M50 runs at 29.0 J/TH — a difference of 31.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 52% better efficiency (60.0 vs 29.0 J/TH).