Bitmain Antminer S21e Hyd (310Th)

Hashrate 310.0 TH/s Power 5,270 W Efficiency 17.0 J/TH

Bitdeer SealMiner A3 Pro Air

Hashrate 290.0 TH/s Power 3,625 W Efficiency 12.5 J/TH

Bitmain Antminer S21e Hyd (310Th) vs Bitdeer SealMiner A3 Pro Air

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

Specifications Comparison

Bitmain Antminer S21e Hyd (310Th)	Specification	Bitdeer SealMiner A3 Pro Air
310.0 TH/s	Hashrate	290.0 TH/s
5,270 W	Power Consumption	3,625 W
17.0 J/TH	Efficiency	12.5 J/TH
75 dB	Noise Level	75 dB
12.8 kg	Weight	15.5 kg
17,981 BTU/hr	BTU Output	12,369 BTU/hr
30/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitmain	Manufacturer	Bitdeer

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S21e Hyd (310Th)

Daily Revenue 0.00013436 BTC $9.29

Daily Electricity -$12.65

Daily Profit -$3.36

Monthly -$100.69

Yearly -$1,225.10

Bitdeer SealMiner A3 Pro Air

Daily Revenue 0.00012569 BTC $8.69

Daily Electricity -$8.70

Daily Profit -$0.01

Monthly -$0.24

Yearly -$2.88

Based on BTC price of $69,154 and current network difficulty as of Mar 24, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Bitdeer SealMiner A3 Pro Air wins on 2 of 4 factors (efficiency, power consumption). The Bitmain Antminer S21e Hyd (310Th) holds the edge in hashrate and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Bitdeer SealMiner A3 Pro Air — wins on 2 of 4 factors

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 A3 Pro Air

12.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer S21e Hyd (310Th) 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 $-0.01/day compared to $-3.36/day for the Bitmain Antminer S21e Hyd (310Th). 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 (310Th) or Bitdeer SealMiner A3 Pro Air?

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

Which is better for home mining, the Bitmain Antminer S21e Hyd (310Th) or Bitdeer SealMiner A3 Pro Air?

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 S21e Hyd (310Th) and Bitdeer SealMiner A3 Pro Air?

The Bitmain Antminer S21e Hyd (310Th) 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.

Compare Bitmain Antminer S21e Hyd (310Th) with...

Compare Bitdeer SealMiner A3 Pro Air with...

Shop Miners Browse our full catalog of ASIC miners, Bitaxe, and accessories. ASIC Repair 2,500+ miners repaired. Expert diagnostics and board-level repair. Miner Database Compare 500+ miners with live profitability data.