Bitmain Antminer S21 Immersion (301Th)
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A15Pro-218T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (301Th) | Specification | Canaan Avalon A15Pro-218T |
|---|---|---|
| 301.0 TH/s | Taux de hachage | 218.0 TH/s |
| 5,569 W | Consommation électrique | 3,662 W |
| 18.5 J/TH | Efficiency | 16.8 J/TH |
| 50 dB | Niveau de bruit | 75 dB |
| 17.2 kg | Weight | 14.9 kg |
| 19,001 BTU/hr | BTU Output | 12,495 BTU/hr |
| 44/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21 Immersion (301Th)
Canaan Avalon A15Pro-218T
Based on BTC price of $78,183 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Bitmain Antminer S21 Immersion (301Th) l'emporte sur 4 des 6 facteurs (hashrate, score de minage domestique, niveau sonore, rapport qualité-prix). Its biggest concrete edge: 33% better noise (50.0 vs 75.0 dB). The Canaan Avalon A15Pro-218T claws back ground on efficacité and consommation électrique. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitmain Antminer S21 Immersion (301Th) and Canaan Avalon A15Pro-218T diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 Immersion (301Th) 38% more hashrate (301 vs 218 TH/s)
- Canaan Avalon A15Pro-218T 34% better power draw (5,569 vs 3,662 W)
- Canaan Avalon A15Pro-218T 9% better efficacité (18.5 vs 16.8 J/TH)
- Bitmain Antminer S21 Immersion (301Th) 33% better noise (50.0 vs 75.0 dB)
- Canaan Avalon A15Pro-218T 13% better weight (17.2 vs 14.9 kg)
- Bitmain Antminer S21 Immersion (301Th) 52% more heat output (19,001 vs 12,495 BTU/hr)
- Bitmain Antminer S21 Immersion (301Th) 47% more score de minage domestique (44.0 vs 30.0)
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.
| Bitmain Antminer S21 Immersion (301Th) | Metric | Canaan Avalon A15Pro-218T |
|---|---|---|
| $3,333 | Upfront cost (MSRP) | $2,525 |
| -$2.54 | Daily net profit | -$0.95 |
| -$4,258 | Net after 1 year | -$2,870 |
| -$5,184 | Net after 2 years | -$3,215 |
| -$6,109 | Net after 3 years | -$3,560 |
| 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
Bitmain Antminer S21 Immersion (301Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Canaan Avalon A15Pro-218T16.8 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 Immersion (301Th) or Canaan Avalon A15Pro-218T more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan Avalon A15Pro-218T is more profitable at $-0.95/day compared to $-2.54/day for the Bitmain Antminer S21 Immersion (301Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21 Immersion (301Th) or the Canaan Avalon A15Pro-218T better for noise-sensitive spaces?
The Bitmain Antminer S21 Immersion (301Th) is quieter at 50 dB compared to the Canaan Avalon A15Pro-218T at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A15Pro-218T: which fits a residential setup better?
The Bitmain Antminer S21 Immersion (301Th) scores 44/100 on our Home Mining Score (vs 30/100 for the Canaan Avalon A15Pro-218T). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A15Pro-218T: how much does the efficiency gap matter?
The Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH while the Canaan Avalon A15Pro-218T runs at 16.8 J/TH — a difference of 1.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 9% better efficacité (18.5 vs 16.8 J/TH).
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