Bitmain Antminer S19j Pro (100Th)

Hashrate 100.0 TH/s Power 3,050 W Efficiency 30.5 J/TH

Bitmain Antminer S21 Immersion (301Th)

Hashrate 301.0 TH/s Power 5,569 W Efficiency 18.5 J/TH

Bitmain Antminer S19j Pro (100Th) vs Bitmain Antminer S21 Immersion (301Th)

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

Specifications Comparison

Bitmain Antminer S19j Pro (100Th)	Specification	Bitmain Antminer S21 Immersion (301Th)
100.0 TH/s	Hashrate	301.0 TH/s
3,050 W	Power Consumption	5,569 W
30.5 J/TH	Efficiency	18.5 J/TH
—	Noise Level	50 dB
13,200.0 kg	Weight	17.2 kg
10,407 BTU/hr	BTU Output	19,001 BTU/hr
22/100	Home Mining Score	44/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitmain	Manufacturer	Bitmain

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S19j Pro (100Th)

Daily Revenue 0.00004334 BTC $3.07

Daily Electricity -$7.32

Daily Profit -$4.25

Monthly -$127.46

Yearly -$1,550.77

Bitmain Antminer S21 Immersion (301Th)

Daily Revenue 0.00013046 BTC $9.24

Daily Electricity -$13.37

Daily Profit -$4.12

Monthly -$123.63

Yearly -$1,504.15

Based on BTC price of $70,862 and current network difficulty as of Mar 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Bitmain Antminer S21 Immersion (301Th) wins on 4 of 6 factors (efficiency, hashrate, home mining score, noise level). The Bitmain Antminer S19j Pro (100Th) holds the edge in power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Bitmain Antminer S21 Immersion (301Th) — wins on 4 of 6 factors

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

Bitmain Antminer S21 Immersion (301Th)

18.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer S19j Pro (100Th) or Bitmain Antminer S21 Immersion (301Th) more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Immersion (301Th) is more profitable at $-4.12/day compared to $-4.25/day for the Bitmain Antminer S19j Pro (100Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Bitmain Antminer S19j Pro (100Th) or Bitmain Antminer S21 Immersion (301Th)?

The Bitmain Antminer S21 Immersion (301Th) is quieter at 50 dB compared to the Bitmain Antminer S19j Pro (100Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Bitmain Antminer S19j Pro (100Th) or Bitmain Antminer S21 Immersion (301Th)?

The Bitmain Antminer S21 Immersion (301Th) scores 44/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19j Pro (100Th)). 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 S19j Pro (100Th) and Bitmain Antminer S21 Immersion (301Th)?

The Bitmain Antminer S19j Pro (100Th) runs at 30.5 J/TH while the Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH — a difference of 12.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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