Bitmain Antminer S21 Immersion (301Th)

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

Antminer Slim Edition (S17)

Hashrate 50.0 TH/s Power 2,000 W Efficiency 40.0 J/TH

Bitmain Antminer S21 Immersion (301Th) vs Antminer Slim Edition (S17)

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

Specifications Comparison

Bitmain Antminer S21 Immersion (301Th)	Specification	Antminer Slim Edition (S17)
301.0 TH/s	Hashrate	50.0 TH/s
5,569 W	Power Consumption	2,000 W
18.5 J/TH	Efficiency	40.0 J/TH
50 dB	Noise Level	70 dB
17.2 kg	Weight	7.5 kg
19,001 BTU/hr	BTU Output	6,824 BTU/hr
44/100	Home Mining Score	42/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitmain	Manufacturer	D-Central

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S21 Immersion (301Th)

Daily Revenue 0.00014143 BTC $9.38

Daily Electricity -$13.37

Daily Profit -$3.99

Monthly -$119.58

Yearly -$1,454.86

Antminer Slim Edition (S17)

Daily Revenue 0.00002349 BTC $1.56

Daily Electricity -$4.80

Daily Profit -$3.24

Monthly -$97.26

Yearly -$1,183.30

Based on BTC price of $66,321 and current network difficulty as of Mar 29, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Bitmain Antminer S21 Immersion (301Th) wins on 5 of 6 factors (efficiency, hashrate, home mining score, noise level, price-performance). The Antminer Slim Edition (S17) 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 S21 Immersion (301Th) — wins on 5 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 S21 Immersion (301Th) or Antminer Slim Edition (S17) more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer Slim Edition (S17) is more profitable at $-3.24/day compared to $-3.99/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 Antminer Slim Edition (S17)?

The Bitmain Antminer S21 Immersion (301Th) is quieter at 50 dB compared to the Antminer Slim Edition (S17) at 70 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 Antminer Slim Edition (S17)?

The Bitmain Antminer S21 Immersion (301Th) scores 44/100 on our Home Mining Score (vs 42/100 for the Antminer Slim Edition (S17)). 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 Antminer Slim Edition (S17)?

The Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH while the Antminer Slim Edition (S17) runs at 40.0 J/TH — a difference of 21.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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