Antminer S21 Pro vs Bitdeer SealMiner A2 Pro Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Pro | Specification | Bitdeer SealMiner A2 Pro Air |
|---|---|---|
| 234.0 TH/s | Taux de hachage | 255.0 TH/s |
| 3,510 W | Consommation électrique | 3,790 W |
| 15.0 J/TH | Efficiency | 14.9 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 15.0 kg | Weight | 15.5 kg |
| 11,976 BTU/hr | BTU Output | 12,932 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S21 Pro
Bitdeer SealMiner A2 Pro Air
Based on BTC price of $66,858 and current network difficulty as of Mar 28, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Bitdeer SealMiner A2 Pro Air l'emporte sur 3 des 4 facteurs (efficacité, hashrate, rapport qualité-prix). Le Antminer S21 Pro a l'avantage en consommation électrique. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitdeer SealMiner A2 Pro Air14.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 Pro or Bitdeer SealMiner A2 Pro Air more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Pro is more profitable at $-1.07/day compared to $-1.09/day for the Bitdeer SealMiner A2 Pro Air. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 Pro or Bitdeer SealMiner A2 Pro Air?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S21 Pro or Bitdeer SealMiner A2 Pro Air?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Antminer S21 Pro and Bitdeer SealMiner A2 Pro Air?
The Antminer S21 Pro runs at 15.0 J/TH while the Bitdeer SealMiner A2 Pro Air runs at 14.9 J/TH — a difference of 0.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
Compare Antminer S21 Pro with...
Compare Bitdeer SealMiner A2 Pro Air with...
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A2
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A2 Hyd
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A2 Pro Hyd
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A3 Air
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A3 Hydro
- Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A3 Pro Air