NerdQAxe++ vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| NerdQAxe++ | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 4.0 TH/s | Taux de hachage | 31.0 TH/s |
| 120 W | Consommation électrique | 1,860 W |
| 30.0 J/TH | Efficiency | 60.0 J/TH |
| 42 dB | Niveau de bruit | — |
| 0.5 kg | Weight | 7.2 kg |
| 409 BTU/hr | BTU Output | 6,346 BTU/hr |
| 58/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| D-Central | Manufacturer | MicroBT |
Profitability Comparison
NerdQAxe++
MicroBT Whatsminer M21
Based on BTC price of $64,000 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le NerdQAxe++ l'emporte sur 4 des 5 facteurs (efficacité, consommation électrique, score de minage domestique, niveau sonore). Where it pulls away hardest is 94% better power draw (120 vs 1,860 W). The MicroBT Whatsminer M21 holds the edge in hashrate. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the NerdQAxe++ and MicroBT Whatsminer M21 actually differ, with the gap quantified:
- MicroBT Whatsminer M21 675% more hashrate (4.0 vs 31.0 TH/s)
- NerdQAxe++ 94% better power draw (120 vs 1,860 W)
- NerdQAxe++ 50% better efficacité (30.0 vs 60.0 J/TH)
- NerdQAxe++ 93% better weight (0.5 vs 7.2 kg)
- MicroBT Whatsminer M21 1450% more heat output (409 vs 6,346 BTU/hr)
- NerdQAxe++ 107% more score de minage domestique (58.0 vs 28.0)
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.
| NerdQAxe++ | Metric | MicroBT Whatsminer M21 |
|---|---|---|
| $349 | Upfront cost (MSRP) | — |
| -$0.17 | Daily net profit | -$3.57 |
| -$412 | Net after 1 year | -$1,302 |
| -$475 | Net after 2 years | -$2,603 |
| -$538 | Net after 3 years | -$3,905 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
NerdQAxe++Score: 58/100. 42 dB noise level.
Best for Efficiency
NerdQAxe++30.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the NerdQAxe++ or the MicroBT Whatsminer M21?
At the current BTC price and a $0.10/kWh electricity rate, the NerdQAxe++ is more profitable at $-0.17/day compared to $-3.57/day for the MicroBT Whatsminer M21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the NerdQAxe++ or MicroBT Whatsminer M21?
The NerdQAxe++ is quieter at 42 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
NerdQAxe++ vs MicroBT Whatsminer M21: which fits a residential setup better?
The NerdQAxe++ scores 58/100 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.
How far apart are the NerdQAxe++ and MicroBT Whatsminer M21 on J/TH?
The NerdQAxe++ runs at 30.0 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 30.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 50% better efficacité (30.0 vs 60.0 J/TH).