The Antminer S21+ 216T is the professional’s choice for scaling operations with high-efficiency air-cooled hardware. Launched as an evolution of the standard S21 series, the S21+ bridges the gap between the base models and the flagship Pro series, offering a significant boost in hashrate without the complexity of hydro-cooling requirements. Browse our full Bitmain Antminer collection
Next-Gen Efficiency
In a post-halving market, efficiency is the only metric that guarantees longevity. The S21+ operates at a power consumption of , achieving a lean efficiency ratio. This low energy footprint allows miners to maintain profitability even during periods of network difficulty spikes, making it one of the most resilient assets in any SHA-256 portfolio.
Refined Air-Cooling Architecture
The S21+ features Bitmain’s latest thermal management system, designed to handle the increased power density of the 216 TH/s hashrate:
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Enhanced Fan System: Equipped with four high-velocity fans that provide superior airflow, maintaining optimal chip temperatures even in ambient environments up to 45°C.
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Industrial Durability: The hardware is built with high-grade components meant for 24/7 continuous operation in professional data centers.
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Integrated PSU: The miner comes with a high-efficiency power supply unit that supports a wide voltage range (), ensuring compatibility with global industrial electrical standards.
Technical Specifications Overview
| Feature | Specification |
| Manufacturer | Bitmain |
| Model | Antminer S21+ (216 TH/s) |
| Algorithm | SHA-256 (BTC, BCH, BSV) |
| Hashrate | |
| Power Consumption | |
| Power Efficiency | |
| Cooling Method | Air-Cooling (4 x Fans) |
| Dimensions | |
| Net Weight | |
| Noise Level |
Why Purchase the S21+ from CryptoMiners24?
Investing in the latest Bitmain hardware requires a partner that provides more than just a box. At CryptoMiners24, we offer:
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100% Genuine & Factory New: We guarantee all S21+ units are sourced directly from Bitmain with official 365-day warranties.
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Global Logistics Expertise: Secure, insured shipping to over 100 countries via premium couriers like DHL and FedEx.
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Flexible Payment Solutions: We accept Bitcoin (BTC), USDT, and traditional bank transfers for a seamless purchasing experience.
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Dedicated After-Sales Support: Our technical team is available to help you with initial configuration and pool setup.





