MicroBT Whatsminer M21 vs MicroBT Whatsminer M32S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | MicroBT Whatsminer M32S |
|---|---|---|
| 31.0 TH/s | Hashrate | 66.0 TH/s |
| 1,860 W | Power Consumption | 3,432 W |
| 60.0 J/TH | Efficiency | 52.0 J/TH |
| — | Noise Level | — |
| 7,150.0 kg | Weight | — |
| 6,346 BTU/hr | BTU Output | 11,710 BTU/hr |
| 28/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
MicroBT Whatsminer M32S
Based on BTC price of $79,101 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the MicroBT Whatsminer M32S comes out ahead — it takes 2 of 4 (efficiency, hashrate). Its biggest concrete edge: 113% more hashrate (31.0 vs 66.0 TH/s). The MicroBT Whatsminer M21 holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M21 and MicroBT Whatsminer M32S actually differ, with the gap quantified:
- MicroBT Whatsminer M32S 113% more hashrate (31.0 vs 66.0 TH/s)
- MicroBT Whatsminer M21 46% better power draw (1,860 vs 3,432 W)
- MicroBT Whatsminer M32S 13% better efficiency (60.0 vs 52.0 J/TH)
- MicroBT Whatsminer M32S 85% more heat output (6,346 vs 11,710 BTU/hr)
- MicroBT Whatsminer M21 27% more home mining score (28.0 vs 22.0)
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 M21 | Metric | MicroBT Whatsminer M32S |
|---|---|---|
| — | Upfront cost (MSRP) | $5,500 |
| -$3.34 | Daily net profit | -$5.83 |
| -$1,217 | Net after 1 year | -$7,630 |
| -$2,435 | Net after 2 years | -$9,759 |
| -$3,652 | Net after 3 years | -$11,889 |
| — | 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
MicroBT Whatsminer M21Score: 28/100. 0 dB noise level.
Best for Efficiency
MicroBT Whatsminer M32S52.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M21 vs MicroBT Whatsminer M32S: 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 $-3.34/day compared to $-5.83/day for the MicroBT Whatsminer M32S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the MicroBT Whatsminer M21 or the MicroBT Whatsminer M32S better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
MicroBT Whatsminer M21 vs MicroBT Whatsminer M32S: which fits a residential setup better?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M32S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
MicroBT Whatsminer M21 vs MicroBT Whatsminer M32S: how much does the efficiency gap matter?
The MicroBT Whatsminer M21 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).