S9 vs SealMiner A2 Pro Air
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1300 W | 3790 W | |
| Release | 2017-11 | 2025-03 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $-1.97 | $3.12 | |
| Score | 49/100 | 72/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S9 | SealMiner A2 Pro Air | |
|---|---|---|---|
| SHA-256 | 13 TH/s1300 W · 10 GH/s/W | 255 TH/s3790 W · 67.28 GH/s/W |