Antminer S21 Hydro vs Bitdeer SealMiner A2
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Hydro | Specification | Bitdeer SealMiner A2 |
|---|---|---|
| 335.0 TH/s | Taux de hachage | 226.0 TH/s |
| 5,360 W | Consommation électrique | 3,730 W |
| 16.0 J/TH | Efficiency | 16.5 J/TH |
| 50 dB | Niveau de bruit | 75 dB |
| 15.8 kg | Weight | 15.5 kg |
| 18,288 BTU/hr | BTU Output | 12,727 BTU/hr |
| 44/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S21 Hydro
Bitdeer SealMiner A2
Based on BTC price of $66,013 and current network difficulty as of Mar 27, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 Hydro l'emporte sur 4 des 6 facteurs (efficacité, hashrate, score de minage domestique, niveau sonore). Le Bitdeer SealMiner A2 a l'avantage en consommation électrique and rapport qualité-prix. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S21 HydroScore: 44/100. 50 dB noise level.
Best for Efficiency
Antminer S21 Hydro16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 Hydro or Bitdeer SealMiner A2 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 is more profitable at $-1.94/day compared to $-2.47/day for the Antminer S21 Hydro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 Hydro or Bitdeer SealMiner A2?
The Antminer S21 Hydro is quieter at 50 dB compared to the Bitdeer SealMiner A2 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21 Hydro or Bitdeer SealMiner A2?
The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A2). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer S21 Hydro and Bitdeer SealMiner A2?
The Antminer S21 Hydro runs at 16.0 J/TH while the Bitdeer SealMiner A2 runs at 16.5 J/TH — a difference of 0.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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