The Bitmain Antminer S21+ (225Th/s) is a high-performance Bitcoin ASIC miner engineered for the SHA-256 algorithm, purpose-built for Bitcoin (BTC) mining. As an enhanced variant of the S21+ series, this model delivers higher hashrate output while maintaining strong energy efficiency and a reliable air-cooled architecture.

With a maximum hashrate of 225 TH/s and a power consumption of 3712W, the Antminer S21+ (225Th) achieves an efficiency of 16.498 J/TH, making it an excellent option for miners seeking a balance between power density, efficiency, and deployment simplicity.

Released in June 2025, this miner features Bitmain’s proven dual-fan cooling system, ensuring consistent airflow, stable operating temperatures, and long-term durability in demanding mining environments. Its standardized industrial chassis allows for seamless integration into mining farms, containers, and hosting facilities.

Backed by Bitmain’s trusted Antminer platform, the S21+ (225Th) is ideal for professional mining operations, hosting providers, and serious individual miners focused on scalable, efficient BTC production.

Key Features

• 225 TH/s Bitcoin hashrate

• Efficient 16.498 J/TH performance

• Proven air-cooled design

• Dual high-efficiency cooling fans

• Optimized for SHA-256 / BTC mining

• Compact, rack-friendly form factor

• Built on the Antminer S21+ platform