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.

Key Features

• 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