The Bitmain Antminer S21+ (235Th/s) is a powerful next-generation Bitcoin ASIC miner designed for the SHA-256 algorithm, optimized exclusively for Bitcoin (BTC) mining. As one of the higher-output models in the S21+ lineup, it delivers increased hashrate while maintaining reliable efficiency and operational stability.

Producing a maximum hashrate of 235 TH/s with a power consumption of 3877W, the Antminer S21+ (235Th) operates at an efficiency of 16.498 J/TH, making it well-suited for professional miners seeking stronger performance without transitioning to liquid or immersion cooling.

Released in June 2025, this unit features Bitmain’s proven dual-fan air-cooling system, ensuring effective heat dissipation, consistent performance, and long-term durability. Its compact industrial design allows easy deployment in mining farms, containers, and hosted environments.

Built on Bitmain’s trusted Antminer platform, the S21+ (235Th) is ideal for scalable BTC mining operations, hosting providers, and advanced individual miners aiming to maximize hashrate density within standard infrastructure.

Key Features

• 235 TH/s Bitcoin hashrate

• Efficient 16.498 J/TH energy profile

• Reliable air-cooled architecture

• Dual high-performance cooling fans

• Optimized for SHA-256 / BTC mining

• Compact and deployment-friendly chassis

• Part of the Antminer S21+ performance series