Bitmain Antminer S21 Immersion (301Th)

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

Bitdeer SealMiner A2 Hyd

Taux de hachage 446.0 TH/s Puissance 7,360 W Efficiency 16.5 J/TH

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

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

Specifications Comparison

Bitmain Antminer S21 Immersion (301Th)	Specification	Bitdeer SealMiner A2 Hyd
301.0 TH/s	Taux de hachage	446.0 TH/s
5,569 W	Consommation électrique	7,360 W
18.5 J/TH	Efficiency	16.5 J/TH
50 dB	Niveau de bruit	50 dB
17.2 kg	Weight	20.5 kg
19,001 BTU/hr	BTU Output	25,112 BTU/hr
44/100	Home Mining Score	44/100
—	Release Year	—
SHA-256	Algorithme	SHA-256
Bitmain	Manufacturer	Bitdeer

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S21 Immersion (301Th)

Daily Revenue 0.00013955 BTC $10.89

Daily Electricity -$13.37

Daily Profit -$2.47

Monthly -$74.13

Yearly -$901.86

Bitdeer SealMiner A2 Hyd

Daily Revenue 0.00020677 BTC $16.14

Daily Electricity -$17.66

Daily Profit -$1.52

Monthly -$45.63

Yearly -$555.15

Based on BTC price of $78,071 and current network difficulty as of Apr 26, 2026. Actual results vary.

Verdict

Selon notre analyse multifactorielle, le Bitdeer SealMiner A2 Hyd l'emporte sur 2 des 4 facteurs (efficacité, hashrate). Le Bitmain Antminer S21 Immersion (301Th) 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.

Winner: Bitdeer SealMiner A2 Hyd — l'emporte sur 2 des 4 facteurs

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Tie

Both miners are equally suitable for home use.

Best for Efficiency

Bitdeer SealMiner A2 Hyd

16.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

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

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 Hyd is more profitable at $-1.52/day compared to $-2.47/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 Hyd?

Both miners have similar noise levels. Check the specs table above for exact decibel readings.

Which is better for home mining, the Bitmain Antminer S21 Immersion (301Th) or Bitdeer SealMiner A2 Hyd?

Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.

What is the efficiency difference between Bitmain Antminer S21 Immersion (301Th) and Bitdeer SealMiner A2 Hyd?

The Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH while the Bitdeer SealMiner A2 Hyd runs at 16.5 J/TH — a difference of 2.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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