Bitdeer SealMiner A2 Pro Air vs MicroBT Whatsminer M3X
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A2 Pro Air | Specification | MicroBT Whatsminer M3X |
|---|---|---|
| 255.0 TH/s | Hashrate | 12.5 TH/s |
| 3,790 W | Power Consumption | 2,050 W |
| 14.9 J/TH | Efficiency | 164.0 J/TH |
| 75 dB | Noise Level | — |
| 15.5 kg | Weight | 7,500.0 kg |
| 12,932 BTU/hr | BTU Output | 6,995 BTU/hr |
| 30/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitdeer | Manufacturer | MicroBT |
Profitability Comparison
Bitdeer SealMiner A2 Pro Air
MicroBT Whatsminer M3X
Based on BTC price of $77,902 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitdeer SealMiner A2 Pro Air comes out ahead — it takes 5 of 6 (efficiency, hashrate, home mining score, noise level, price-performance). The standout gap is 1940% more hashrate (255.0 vs 12.5 TH/s) in the Bitdeer SealMiner A2 Pro Air's favour. The MicroBT Whatsminer M3X holds the edge in power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitdeer SealMiner A2 Pro Air and MicroBT Whatsminer M3X diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A2 Pro Air 1940% more hashrate (255.0 vs 12.5 TH/s)
- MicroBT Whatsminer M3X 46% better power draw (3,790 vs 2,050 W)
- Bitdeer SealMiner A2 Pro Air 91% better efficiency (14.9 vs 164.0 J/TH)
- Bitdeer SealMiner A2 Pro Air 100% better weight (15.5 vs 7,500.0 kg)
- Bitdeer SealMiner A2 Pro Air 85% more heat output (12,932 vs 6,995 BTU/hr)
- Bitdeer SealMiner A2 Pro Air 15% more home mining score (30.0 vs 26.0)
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.
| Bitdeer SealMiner A2 Pro Air | Metric | MicroBT Whatsminer M3X |
|---|---|---|
| $4,000 | Upfront cost (MSRP) | $350 |
| $0.05 | Daily net profit | -$4.47 |
| -$3,983 | Net after 1 year | -$1,982 |
| -$3,967 | Net after 2 years | -$3,614 |
| -$3,950 | Net after 3 years | -$5,247 |
| Takes ~240.6 years to pay back at current rates | 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
Bitdeer SealMiner A2 Pro Air$4.52/day higher profit at current rates.
Best for Home Mining
Bitdeer SealMiner A2 Pro AirScore: 30/100. 75 dB noise level.
Best for Efficiency
Bitdeer SealMiner A2 Pro Air14.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitdeer SealMiner A2 Pro Air or the MicroBT Whatsminer M3X?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 Pro Air is more profitable at $0.05/day compared to $-4.47/day for the MicroBT Whatsminer M3X. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitdeer SealMiner A2 Pro Air or MicroBT Whatsminer M3X?
The Bitdeer SealMiner A2 Pro Air is quieter at 75 dB compared to the MicroBT Whatsminer M3X at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitdeer SealMiner A2 Pro Air or MicroBT Whatsminer M3X?
The Bitdeer SealMiner A2 Pro Air scores 30/100 on our Home Mining Score (vs 26/100 for the MicroBT Whatsminer M3X). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitdeer SealMiner A2 Pro Air and MicroBT Whatsminer M3X on J/TH?
The Bitdeer SealMiner A2 Pro Air runs at 14.9 J/TH while the MicroBT Whatsminer M3X runs at 164.0 J/TH — a difference of 149.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 91% better efficiency (14.9 vs 164.0 J/TH).
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