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Antminer S21

Antminer S21

Hashrate 200.0 TH/s Power 3,500 W Efficiency 17.5 J/TH
VS
Bitmain Antminer S21e Hyd (332Th)

Bitmain Antminer S21e Hyd (332Th)

Hashrate 332.0 TH/s Power 5,644 W Efficiency 17.0 J/TH

Antminer S21 vs Bitmain Antminer S21e Hyd (332Th)

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

Specifications Comparison

Antminer S21 Specification Bitmain Antminer S21e Hyd (332Th)
200.0 TH/s Hashrate 332.0 TH/s
3,500 W Power Consumption 5,644 W
17.5 J/TH Efficiency 17.0 J/TH
75 dB Noise Level 55 dB
14.6 kg Weight 12.8 kg
11,942 BTU/hr BTU Output 19,257 BTU/hr
36/100 Home Mining Score 44/100
Release Year
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Bitmain

Profitability Comparison

$/kWh

Antminer S21

Daily Revenue 0.00008668 BTC $6.15
Daily Electricity -$8.40
Daily Profit -$2.25
Monthly -$67.61
Yearly -$822.62

Bitmain Antminer S21e Hyd (332Th)

Daily Revenue 0.00014390 BTC $10.20
Daily Electricity -$13.55
Daily Profit -$3.34
Monthly -$100.28
Yearly -$1,220.13

Based on BTC price of $70,904 and current network difficulty as of Mar 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Bitmain Antminer S21e Hyd (332Th) wins on 5 of 6 factors (efficiency, hashrate, home mining score, noise level, price-performance). The Antminer S21 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Bitmain Antminer S21e Hyd (332Th) — wins on 5 of 6 factors

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitmain Antminer S21e Hyd (332Th)

Score: 44/100. 55 dB noise level.

Best for Efficiency

Bitmain Antminer S21e Hyd (332Th)

17.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Antminer S21 or Bitmain Antminer S21e Hyd (332Th) more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 is more profitable at $-2.25/day compared to $-3.34/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 Antminer S21 or Bitmain Antminer S21e Hyd (332Th)?

The Bitmain Antminer S21e Hyd (332Th) is quieter at 55 dB compared to the Antminer S21 at 75 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Antminer S21 or Bitmain Antminer S21e Hyd (332Th)?

The Bitmain Antminer S21e Hyd (332Th) scores 44/100 on our Home Mining Score (vs 36/100 for the Antminer S21). 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 and Bitmain Antminer S21e Hyd (332Th)?

The Antminer S21 runs at 17.5 J/TH while the Bitmain Antminer S21e Hyd (332Th) runs at 17.0 J/TH — a difference of 0.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.