Bitmain Antminer S21 Immersion (301Th)

Taux de hachage 301.0 TH/s Puissance 5,569 W Efficiency 18.5 J/TH

Bitdeer SealMiner A2 Pro Air

Taux de hachage 255.0 TH/s Puissance 3,790 W Efficiency 14.9 J/TH

Bitmain Antminer S21 Immersion (301Th) vs Bitdeer SealMiner A2 Pro Air

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Bitmain Antminer S21 Immersion (301Th)	Specification	Bitdeer SealMiner A2 Pro Air
301.0 TH/s	Taux de hachage	255.0 TH/s
5,569 W	Consommation électrique	3,790 W
18.5 J/TH	Efficiency	14.9 J/TH
50 dB	Niveau de bruit	75 dB
17.2 kg	Weight	15.5 kg
19,001 BTU/hr	BTU Output	12,932 BTU/hr
44/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithme	SHA-256
Bitmain	Manufacturer	Bitdeer

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S21 Immersion (301Th)

Daily Revenue 0.00014143 BTC $9.33

Daily Electricity -$13.37

Daily Profit -$4.04

Monthly -$121.13

Yearly -$1,473.76

Bitdeer SealMiner A2 Pro Air

Daily Revenue 0.00011981 BTC $7.90

Daily Electricity -$9.10

Daily Profit -$1.19

Monthly -$35.81

Yearly -$435.67

Based on BTC price of $65,955 and current network difficulty as of Mar 27, 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). Le Bitdeer SealMiner A2 Pro Air a l'avantage en efficacité and consommation électrique. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.

Winner: Bitmain Antminer S21 Immersion (301Th) — l'emporte sur 4 des 6 facteurs

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitmain Antminer S21 Immersion (301Th)

Score: 44/100. 50 dB noise level.

Best for Efficiency

Bitdeer SealMiner A2 Pro Air

14.9 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer S21 Immersion (301Th) or Bitdeer SealMiner A2 Pro Air more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 Pro Air is more profitable at $-1.19/day compared to $-4.04/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.

Which is quieter, the Bitmain Antminer S21 Immersion (301Th) or Bitdeer SealMiner A2 Pro Air?

The Bitmain Antminer S21 Immersion (301Th) is quieter at 50 dB compared to the Bitdeer SealMiner A2 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 S21 Immersion (301Th) or Bitdeer SealMiner A2 Pro Air?

The Bitmain Antminer S21 Immersion (301Th) scores 44/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A2 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 S21 Immersion (301Th) and Bitdeer SealMiner A2 Pro Air?

The Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH while the Bitdeer SealMiner A2 Pro Air runs at 14.9 J/TH — a difference of 3.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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