ASICs
Antminer S21+
Bridges the S21 and Pro models, offering higher hashrate and improved efficiency at a balanced price point. Ideal for miners seeking a cost-effective, competitive upgrade.
Air cooled
About Bitmain Antminer S21+
The Bitmain Antminer S21+ represents a refined evolution in the S21 series, designed to bridge the gap between the standard S21 and the high-end Pro models. Offering an optimized balance of performance and price, the S21+ delivers a significant hashrate upgrade over the original S21 while improving energy efficiency. It is the ideal solution for miners seeking a cost-effective yet powerful hardware upgrade that ensures competitive margins in a demanding network environment.
Available in: 216 TH/s, 225 TH/s, 235 TH/s
Key Specifications
Feature | Specification |
Model | Antminer S21+ |
Hashrate | 216 TH/s - 235 TH/s |
Power Consumption | 3,564 W ± 5% (Base Model) |
Power Efficiency | ~16.5 J/TH |
Algorithm | SHA-256 (Bitcoin) |
Cooling System | Air Cooled (4 x High-Speed Fans) |
Voltage | 220V ~ 277V AC |
Dimensions | 400mm x 195mm x 290mm |
Net Weight | 15.4 kg |
Unmatched Performance
Engineered to maximize Bitcoin production, the Antminer S21+ delivers a versatile hashrate ranging from 216 TH/s to 235 TH/s. This places it comfortably above the standard S21 (200T), offering miners a tangible boost in solving power without the premium price tag of the XP or Pro series. Its reliable high-throughput performance makes it a workhorse for farms of all sizes looking to scale up their total network hashrate efficiently.
Robust Air Cooling System
The S21+ utilizes Bitmain’s battle-tested air-cooling design, ensuring durability and ease of integration into existing infrastructures.
Effective Heat Dissipation: Equipped with four high-RPM fans, the unit creates a strong airflow tunnel that rapidly cools the hash boards, maintaining stability during 24/7 operations.
Environmental Adaptability: Designed to function reliably in standard mining environments, it manages heat effectively in ambient temperatures up to 45°C.
Plug-and-Play Design: As an air-cooled unit, it requires no complex liquid cooling setup, allowing for immediate deployment in standard shelving and data center racks.
Efficiency & Industrial Design
The Antminer S21+ achieves a competitive power efficiency of 16.5 J/TH. This is a marked improvement over the standard S21’s 17.5 J/TH, allowing miners to reduce their electricity cost per terahash. With a power consumption of approximately 3,564W (for the 216T model), it optimizes the conversion of energy into profit. The miner retains the compact, stackable aluminum chassis known for its ruggedness and suitability for industrial-scale mining facilities.
Conclusion
The Bitmain Antminer S21+ is the smart choice for miners who value the intersection of performance and ROI. By offering superior efficiency (16.5 J/TH) and higher hashrate options than the base S21, it provides a powerful, future-proof mining solution that keeps operations profitable without breaking the budget.