Whatsminer M21S (56TH/s) vs SealMiner A2 Pro Air (255MH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Whatsminer M21S (56TH/s)
Option 2
SealMiner A2 Pro Air (255MH/s)
SealMiner A2 Pro Air (255MH/s) leads this comparison
SealMiner A2 Pro Air (255MH/s) comes out ahead on more buyer-facing signals here. Whatsminer M21S (56TH/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 | Whatsminer M21S (56TH/s) | SealMiner A2 Pro Air (255MH/s) | Advantage |
|---|---|---|---|
| Brand | MicroBT | N/A | Contextual |
| Model | M21 | N/A | Contextual |
| Hashrate | 56 TH/s Best | 255 MH/s | Whatsminer M21S (56TH/s) |
| Power Consumption | 3360W | 0W Best | SealMiner A2 Pro Air (255MH/s) |
| Efficiency | 60.00 J/TH | N/A | Contextual |
| Daily energy use | 80.6 kWh | 0.0 kWh Best | SealMiner A2 Pro Air (255MH/s) |
| Net Daily Profit (Est.) | -$3.03 | $9.09 Best | SealMiner A2 Pro Air (255MH/s) |
| Monthly Profit (Est.) | -$90.85 | $272.69 Best | SealMiner A2 Pro Air (255MH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 155 x 390 x 240 mm | N/A | Contextual |
| Weight | 12500 g | N/A | Contextual |
Performance
Whatsminer M21S (56TH/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: Whatsminer M21S (56TH/s) or SealMiner A2 Pro Air (255MH/s)?
Whatsminer M21S (56TH/s) has a higher hashrate of 56 TH/s compared to SealMiner A2 Pro Air (255MH/s)'s 255 MH/s.
Is Whatsminer M21S (56TH/s) more efficient than SealMiner A2 Pro Air (255MH/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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