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Bitmain S19k Pro

Bitmain S19k Pro

Hashrate 120.0 TH/s Power 2,760 W Efficiency 23.0 J/TH
VS
Bitdeer SealMiner A2

Bitdeer SealMiner A2

Hashrate 226.0 TH/s Power 3,730 W Efficiency 16.5 J/TH

Bitmain S19k Pro vs Bitdeer SealMiner A2

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

Specifications Comparison

Bitmain S19k Pro Specification Bitdeer SealMiner A2
120.0 TH/s Hashrate 226.0 TH/s
2,760 W Power Consumption 3,730 W
23.0 J/TH Efficiency 16.5 J/TH
75 dB Noise Level 75 dB
14.5 kg Weight 15.5 kg
9,417 BTU/hr BTU Output 12,727 BTU/hr
36/100 Home Mining Score 30/100
— Release Year —
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Bitdeer

Profitability Comparison

$/kWh

Bitmain S19k Pro

Daily Revenue 0.00005522 BTC $4.37
Daily Electricity -$6.62
Daily Profit -$2.25
Monthly -$67.63
Yearly -$822.87

Bitdeer SealMiner A2

Daily Revenue 0.00010400 BTC $8.23
Daily Electricity -$8.95
Daily Profit -$0.72
Monthly -$21.68
Yearly -$263.78

Based on BTC price of $79,127 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Our scoring model gives the nod to the Bitdeer SealMiner A2, which leads on 2 of 5 weighted factors (efficiency, hashrate). Where it pulls away hardest is 88% more hashrate (120 vs 226 TH/s). The Bitmain S19k Pro holds the edge in power consumption and home mining score and price-performance. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.

Winner: Bitdeer SealMiner A2 — wins on 3 of 5 factors

Spec Deltas

The Bitmain S19k Pro and Bitdeer SealMiner A2 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":

  • Bitdeer SealMiner A2 88% more hashrate (120 vs 226 TH/s)
  • Bitmain S19k Pro 26% better power draw (2,760 vs 3,730 W)
  • Bitdeer SealMiner A2 28% better efficiency (23.0 vs 16.5 J/TH)
  • Bitmain S19k Pro 6% better weight (14.5 vs 15.5 kg)
  • Bitdeer SealMiner A2 35% more heat output (9,417 vs 12,727 BTU/hr)
  • Bitmain S19k Pro 20% more home mining score (36.0 vs 30.0)

Cost & ROI Over Time

A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.

Bitmain S19k Pro Metric Bitdeer SealMiner A2
$313 Upfront cost (MSRP) $2,760
-$2.25 Daily net profit -$0.72
-$1,136 Net after 1 year -$3,024
-$1,959 Net after 2 years -$3,288
-$2,782 Net after 3 years -$3,551
Does not pay back at current rates (negative daily profit) Payback period Does not pay back at current rates (negative daily profit)

Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitmain S19k Pro

Score: 36/100. 75 dB noise level.

Best for Efficiency

Bitdeer SealMiner A2

16.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Bitmain S19k Pro vs Bitdeer SealMiner A2: which one earns more per day?

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 is more profitable at $-0.72/day compared to $-2.25/day for the Bitmain S19k Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Bitmain S19k Pro vs Bitdeer SealMiner A2: which runs at a lower noise level?

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

Bitmain S19k Pro vs Bitdeer SealMiner A2: which fits a residential setup better?

The Bitmain S19k Pro scores 36/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A2). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

How far apart are the Bitmain S19k Pro and Bitdeer SealMiner A2 on J/TH?

The Bitmain S19k Pro runs at 23.0 J/TH while the Bitdeer SealMiner A2 runs at 16.5 J/TH — a difference of 6.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 28% better efficiency (23.0 vs 16.5 J/TH).

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Compare Bitdeer SealMiner A2 with...

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