MicroBT Whatsminer M21S vs MicroBT Whatsminer M32S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21S | Specification | MicroBT Whatsminer M32S |
|---|---|---|
| 56.0 TH/s | Hashrate | 66.0 TH/s |
| 3,360 W | Power Consumption | 3,432 W |
| 60.0 J/TH | Efficiency | 52.0 J/TH |
| — | Noise Level | — |
| 12,500.0 kg | Weight | — |
| 11,464 BTU/hr | BTU Output | 11,710 BTU/hr |
| 22/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21S
MicroBT Whatsminer M32S
Based on BTC price of $79,027 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the MicroBT Whatsminer M32S wins on 2 of 4 factors (efficiency, hashrate). Its biggest concrete edge: 18% more hashrate (56.0 vs 66.0 TH/s). That said, the MicroBT Whatsminer M21S isn't beaten everywhere — it still wins power consumption and price-performance. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M21S and MicroBT Whatsminer M32S actually differ, with the gap quantified:
- MicroBT Whatsminer M32S 18% more hashrate (56.0 vs 66.0 TH/s)
- MicroBT Whatsminer M21S 2% better power draw (3,360 vs 3,432 W)
- MicroBT Whatsminer M32S 13% better efficiency (60.0 vs 52.0 J/TH)
- MicroBT Whatsminer M32S 2% more heat output (11,464 vs 11,710 BTU/hr)
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 M21S | Metric | MicroBT Whatsminer M32S |
|---|---|---|
| $650 | Upfront cost (MSRP) | $5,500 |
| -$6.03 | Daily net profit | -$5.84 |
| -$2,850 | Net after 1 year | -$7,630 |
| -$5,050 | Net after 2 years | -$9,761 |
| -$7,250 | Net after 3 years | -$11,891 |
| 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
MicroBT Whatsminer M32S52.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the MicroBT Whatsminer M21S or the MicroBT Whatsminer M32S?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M32S is more profitable at $-5.84/day compared to $-6.03/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 MicroBT Whatsminer M32S?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
MicroBT Whatsminer M21S vs MicroBT Whatsminer M32S: which fits a residential setup better?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
MicroBT Whatsminer M21S vs MicroBT Whatsminer M32S: how much does the efficiency gap matter?
The MicroBT Whatsminer M21S runs at 60.0 J/TH while the MicroBT Whatsminer M32S runs at 52.0 J/TH — a difference of 8.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 13% better efficiency (60.0 vs 52.0 J/TH).