The Bitmain Antminer S21 Pro (234Th/s) is a next-generation, air-cooled Bitcoin ASIC miner designed for professional miners seeking reliable performance with optimized power consumption. Built for the SHA-256 algorithm, this model is engineered specifically for Bitcoin (BTC) mining.

With a hashrate of 234 TH/s and a power draw of 3510W, the Antminer S21 Pro delivers an efficiency rating of 15 J/TH, making it a balanced choice for operators focused on electrical efficiency and long-term stability. Compared to higher-wattage S21 variants, this model offers reduced power requirements while maintaining strong hashrate density.

Released in June 2024, the S21 Pro (234Th) features a durable air-cooling design with dual high-efficiency fans, ensuring stable thermal management during continuous 24/7 operation. With a noise level of 75 dB, it is best suited for industrial mining farms, hosting facilities, or dedicated mining environments.

Equipped with standard Ethernet connectivity, the Antminer S21 Pro integrates seamlessly into existing mining setups. Backed by Bitmain’s proven S21 architecture, this miner is a dependable solution for professionals looking to deploy modern Bitcoin mining hardware with controlled power consumption.

Key Features:

• Reliable 234 TH/s Bitcoin hashrate

• Efficient 15 J/TH energy performance

• Air-cooled design with dual fans

• Lower power draw compared to higher S21 variants

• Ideal for professional and large-scale mining operation