SealMiner A2 Pro Air (255TH/s) vs Antminer S21 (200MH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
SealMiner A2 Pro Air (255TH/s)
Option 2
Antminer S21 (200MH/s)
SealMiner A2 Pro Air (255TH/s) leads this comparison
SealMiner A2 Pro Air (255TH/s) comes out ahead on more buyer-facing signals here. Antminer S21 (200MH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.
Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | SealMiner A2 Pro Air (255TH/s) | Antminer S21 (200MH/s) | Advantage |
|---|---|---|---|
| Brand | SealMiner | N/A | Contextual |
| Model | A2 | N/A | Contextual |
| Hashrate | 255 TH/s Best | 200 MH/s | SealMiner A2 Pro Air (255TH/s) |
| Power Consumption | 3790W | 0W Best | Antminer S21 (200MH/s) |
| Efficiency | 14.86 J/TH | N/A | Contextual |
| Daily energy use | 91.0 kWh | 0.0 kWh Best | Antminer S21 (200MH/s) |
| Net Daily Profit (Est.) | $2.56 Best | $0.00 | SealMiner A2 Pro Air (255TH/s) |
| Monthly Profit (Est.) | $76.87 Best | $0.00 | SealMiner A2 Pro Air (255TH/s) |
| Price | $3,008.29 | N/A | Contextual |
| Estimated ROI | 39 mo | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | N/A | 400 x 290 x 195 mm | Contextual |
| Weight | 17000 g | N/A | Contextual |
Performance
SealMiner A2 Pro Air (255TH/s) has the hashrate edge for raw output potential.
Efficiency
Efficiency data is not available for this comparison.
Buying decision
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
Frequently asked questions
Which is more powerful: SealMiner A2 Pro Air (255TH/s) or Antminer S21 (200MH/s)?
SealMiner A2 Pro Air (255TH/s) has a higher hashrate of 255 TH/s compared to Antminer S21 (200MH/s)'s 200 MH/s.
Is SealMiner A2 Pro Air (255TH/s) more efficient than Antminer S21 (200MH/s)?
Efficiency data is not available for this comparison.
Which miner has the better estimated ROI?
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
Every Day You Wait is Revenue You Lose
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