Bitmain Antminer S21e Hyd (332Th) vs Bitdeer SealMiner A3 Pro Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e Hyd (332Th) | Specification | Bitdeer SealMiner A3 Pro Air |
|---|---|---|
| 332.0 TH/s | Hashrate | 290.0 TH/s |
| 5,644 W | Power Consumption | 3,625 W |
| 17.0 J/TH | Efficiency | 12.5 J/TH |
| 55 dB | Noise Level | 75 dB |
| 12.8 kg | Weight | 15.5 kg |
| 19,257 BTU/hr | BTU Output | 12,369 BTU/hr |
| 44/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Bitmain Antminer S21e Hyd (332Th)
Bitdeer SealMiner A3 Pro Air
Based on BTC price of $66,470 and current network difficulty as of Mar 29, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21e Hyd (332Th) wins on 4 of 6 factors (hashrate, home mining score, noise level, price-performance). The Bitdeer SealMiner A3 Pro Air holds the edge in efficiency and power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitdeer SealMiner A3 Pro Air$3.53/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21e Hyd (332Th)Score: 44/100. 55 dB noise level.
Best for Efficiency
Bitdeer SealMiner A3 Pro Air12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21e Hyd (332Th) or Bitdeer SealMiner A3 Pro Air more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Air is more profitable at $0.36/day compared to $-3.18/day for the Bitmain Antminer S21e Hyd (332Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21e Hyd (332Th) or Bitdeer SealMiner A3 Pro Air?
The Bitmain Antminer S21e Hyd (332Th) is quieter at 55 dB compared to the Bitdeer SealMiner A3 Pro Air at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21e Hyd (332Th) or Bitdeer SealMiner A3 Pro Air?
The Bitmain Antminer S21e Hyd (332Th) scores 44/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A3 Pro Air). 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 Bitmain Antminer S21e Hyd (332Th) and Bitdeer SealMiner A3 Pro Air?
The Bitmain Antminer S21e Hyd (332Th) runs at 17.0 J/TH while the Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH — a difference of 4.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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