The Bitmain Antminer S21+ Hyd (319Th/s) is a high-performance hydro-cooled Bitcoin ASIC miner engineered for the SHA-256 algorithm, purpose-built for professional and institutional BTC mining operations requiring higher efficiency and quiet, stable operation.
Delivering a strong 319 TH/s hashrate while consuming 4785W, the S21+ Hyd operates at an efficiency of 15 J/TH, striking an excellent balance between power density and energy consumption. This makes it an ideal upgrade path for miners transitioning from air-cooled infrastructure to liquid-cooled environments.
Released in February 2025, the S21+ Hyd features Bitmain’s factory-integrated hydro-cooling system, allowing sustained full-load performance with significantly reduced noise levels and superior thermal control compared to traditional fan-based miners. Its compact hydro-ready chassis enables higher rack density and cleaner deployments in modern data centers.
As part of the Antminer S21+ Hydro series, this model is designed for mining farms, hosting providers, and enterprise operators running liquid-cooling infrastructure and high-availability power systems.
319 TH/s Bitcoin hashrate
Efficient 15 J/TH performance
Factory-integrated hydro-cooling
Low noise output for its power class
Designed for SHA-256 / BTC mining
Optimized for professional and hosted environments
Part of Bitmain’s Antminer S21+ Hydro lineup
| Specifications | |
| Algorithm | SHA-256 |
| Hashrate | 319 TH/s ±5% |
| Power Consumption | 4785 W ±5% |
| Efficiency | 15 J/TH |
| Noise Level | 50 dB |
| Dimensions | 410 × 170 × 209 mm |
| Weight | 14.5 kg |
| Interface | Ethernet |
| Temprature | 5 – 40 °C |
| Humidity | 10 – 90% (non-condensing) |
