Antminer S21 Immersion (301Th) vs CK-BOX
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5569 W | 215 W | |
| Release | 2024-12 | 2021-07 | |
| Best opportunity |  BTCNetwork |  CKBNetwork | |
| Profit/day | $2.50 | $-0.34 | |
| Score | 72/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.