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.
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
| Specifications | |
| Algorithm | SHA-256 |
| Hashrate | 235 TH/s ±5% |
| Power Consumption | 3877 W ±5% |
| Efficiency | 16.498 J/TH |
| Noise Level | 75 dB |
| Dimensions | 400 × 195 × 290 mm |
| Weight | 21.5 kg |
| Interface | Ethernet |
| Temprature | 10 – 40 °C |
| Humidity | 10 – 90% (non-condensing) |
