MicroBT Whatsminer M21S vs Whatsminer M56S+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21S | Specification | Whatsminer M56S+ |
|---|---|---|
| 56.0 TH/s | Taux de hachage | 216.0 TH/s |
| 3,360 W | Consommation électrique | 5,060 W |
| 60.0 J/TH | Efficiency | 23.4 J/TH |
| — | Niveau de bruit | 50 dB |
| 12,500.0 kg | Weight | 13.0 kg |
| 11,464 BTU/hr | BTU Output | 17,265 BTU/hr |
| 22/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21S
Whatsminer M56S+
Based on BTC price of $78,194 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Whatsminer M56S+, which leads on 4 of 6 weighted factors (efficacité, hashrate, score de minage domestique, niveau sonore). The standout gap is 286% more hashrate (56.0 vs 216.0 TH/s) in the Whatsminer M56S+'s favour. That said, the MicroBT Whatsminer M21S isn't beaten everywhere — it still wins consommation électrique and rapport qualité-prix. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the MicroBT Whatsminer M21S and Whatsminer M56S+ sit on each measurable spec:
- Whatsminer M56S+ 286% more hashrate (56.0 vs 216.0 TH/s)
- MicroBT Whatsminer M21S 34% better power draw (3,360 vs 5,060 W)
- Whatsminer M56S+ 61% better efficacité (60.0 vs 23.4 J/TH)
- Whatsminer M56S+ 100% better weight (12,500.0 vs 13.0 kg)
- Whatsminer M56S+ 51% more heat output (11,464 vs 17,265 BTU/hr)
- Whatsminer M56S+ 100% more score de minage domestique (22.0 vs 44.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| MicroBT Whatsminer M21S | Metric | Whatsminer M56S+ |
|---|---|---|
| $650 | Upfront cost (MSRP) | $6,000 |
| -$6.05 | Daily net profit | -$4.37 |
| -$2,858 | Net after 1 year | -$7,596 |
| -$5,066 | Net after 2 years | -$9,191 |
| -$7,274 | Net after 3 years | -$10,787 |
| Does not pay back at current rates (negative daily profit) | 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 M56S+Score: 44/100. 50 dB noise level.
Best for Efficiency
Whatsminer M56S+23.4 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the MicroBT Whatsminer M21S or the Whatsminer M56S+?
At the current BTC price and a $0.10/kWh electricity rate, the Whatsminer M56S+ is more profitable at $-4.37/day compared to $-6.05/day for the MicroBT Whatsminer M21S. 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 M56S+?
The Whatsminer M56S+ 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.
For mining at home, should I pick the MicroBT Whatsminer M21S or the Whatsminer M56S+?
The Whatsminer M56S+ 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.
MicroBT Whatsminer M21S vs Whatsminer M56S+: how much does the efficiency gap matter?
The MicroBT Whatsminer M21S runs at 60.0 J/TH while the Whatsminer M56S+ runs at 23.4 J/TH — a difference of 36.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 61% better efficacité (60.0 vs 23.4 J/TH).