Bitmain Antminer S21e XP Hyd 3U vs MicroBT Whatsminer M31S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e XP Hyd 3U | Specification | MicroBT Whatsminer M31S |
|---|---|---|
| 860.0 TH/s | Taux de hachage | 76.0 TH/s |
| 11,180 W | Consommation électrique | 3,220 W |
| 13.0 J/TH | Efficiency | 42.4 J/TH |
| 50 dB | Niveau de bruit | — |
| — | Weight | 12,500.0 kg |
| 38,146 BTU/hr | BTU Output | 10,987 BTU/hr |
| 44/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21e XP Hyd 3U
MicroBT Whatsminer M31S
Based on BTC price of $78,163 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21e XP Hyd 3U, which leads on 4 of 6 weighted factors (efficacité, hashrate, score de minage domestique, niveau sonore). Where it pulls away hardest is 1032% more hashrate (860.0 vs 76.0 TH/s). The MicroBT Whatsminer M31S holds the edge in consommation électrique and rapport qualité-prix. 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 Bitmain Antminer S21e XP Hyd 3U and MicroBT Whatsminer M31S actually differ, with the gap quantified:
- Bitmain Antminer S21e XP Hyd 3U 1032% more hashrate (860.0 vs 76.0 TH/s)
- MicroBT Whatsminer M31S 71% better power draw (11,180 vs 3,220 W)
- Bitmain Antminer S21e XP Hyd 3U 69% better efficacité (13.0 vs 42.4 J/TH)
- Bitmain Antminer S21e XP Hyd 3U 247% more heat output (38,146 vs 10,987 BTU/hr)
- Bitmain Antminer S21e XP Hyd 3U 100% more score de minage domestique (44.0 vs 22.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S21e XP Hyd 3U | Metric | MicroBT Whatsminer M31S |
|---|---|---|
| $10,899 | Upfront cost (MSRP) | $91 |
| $4.10 | Daily net profit | -$4.99 |
| -$9,402 | Net after 1 year | -$1,914 |
| -$7,905 | Net after 2 years | -$3,737 |
| -$6,408 | Net after 3 years | -$5,560 |
| Takes ~7.3 years to pay back at current rates | 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
Bitmain Antminer S21e XP Hyd 3U$9.10/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21e XP Hyd 3UScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21e XP Hyd 3U13.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21e XP Hyd 3U or the MicroBT Whatsminer M31S?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e XP Hyd 3U is more profitable at $4.10/day compared to $-4.99/day for the MicroBT Whatsminer M31S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S21e XP Hyd 3U vs MicroBT Whatsminer M31S: which runs at a lower noise level?
The Bitmain Antminer S21e XP Hyd 3U is quieter at 50 dB compared to the MicroBT Whatsminer M31S at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S21e XP Hyd 3U or the MicroBT Whatsminer M31S?
The Bitmain Antminer S21e XP Hyd 3U scores 44/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M31S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S21e XP Hyd 3U and MicroBT Whatsminer M31S on J/TH?
The Bitmain Antminer S21e XP Hyd 3U runs at 13.0 J/TH while the MicroBT Whatsminer M31S runs at 42.4 J/TH — a difference of 29.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 69% better efficacité (13.0 vs 42.4 J/TH).
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