Antminer S21 Pro (234Th) vs STU-U2
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3510 W | 1600 W | |
| Release | 2024-07 | 2018-10 | |
| Best opportunity |  BTCNetwork |  SCNetwork | |
| Profit/day | $2.95 | $0.57 | |
| Score | 72/100 | 48/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21 Pro (234Th) | STU-U2 | |
|---|---|---|---|
| Blake (2b) | not supported | 7 TH/s1600 W · 4.375 GH/s/W | |
| SHA-256 | 234 TH/s3510 W · 66.67 GH/s/W | not supported |