The Antminer S21 Hyd 395T represents the ultimate evolution of Bitmain’s S21 series. By pushing the boundaries of hashrate density, this model allows industrial miners to achieve massive output within a compact, water-cooled footprint. Optimized for Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV), it is designed to outperform the competition in both raw power and long-term reliability. Antminer S21 Hyd 335 TH/s
Unmatched Power Density and Efficiency
With a hashrate of 395 TH/s, the S21 Hyd is one of the most productive miners ever created. Despite its massive output, it maintains a highly competitive efficiency of 15.0 J/T. This ensures that even as network difficulty increases, your operation remains at the forefront of profitability by minimizing electricity costs per Terahash.
The Hydro-Cooling Advantage
The S21 Hyd series is designed to be integrated into professional hydro-cooling loops, offering several key advantages over traditional air-cooling:
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Extreme Heat Dissipation: Water cooling is significantly more efficient than air, allowing the 395 TH/s output to remain stable without thermal throttling.
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Whisper-Quiet Operation: The absence of high-speed fans makes the S21 Hyd nearly silent, ideal for large-scale deployments where noise mitigation is required.
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Longevity and Protection: The fully enclosed hydro system protects sensitive internal components from dust, humidity, and environmental contaminants.
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Energy Recycling: The thermal energy captured by the water loop can be repurposed for industrial heating, providing an additional layer of ROI for green mining initiatives.
Technical Specifications Overview
| Feature | Specification |
| Manufacturer | Bitmain |
| Model | Antminer S21 Hyd (395 TH/s) |
| Algorithm | SHA-256 (BTC, BCH, BSV) |
| Hashrate | 395 TH/s ±3% |
| Power Consumption | 5925W ±5% |
| Power Efficiency | 15.0 J/T |
| Cooling Method | Hydro-Cooling (Water-cooled) |
| Dimensions | 410mm x 170mm x 209mm |
| Weight | 13.1 kg |
Why Purchase from CryptoMiners24?
When investing in flagship hardware like the Antminer S21 Hyd 395T, you need a reliable partner. CryptoMiners24 is a global leader in ASIC distribution.
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Guaranteed Authenticity: We source 100% genuine, factory-new units directly from Bitmain with full manufacturer warranties.
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Global Logistics Excellence: Insured shipping to over 100 countries via DHL, FedEx, and UPS.
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Secure Crypto Checkout: We accept Bitcoin (BTC), USDT, and bank transfers for your convenience.
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Professional Support: Our team can provide guidance on hydro-cooling infrastructure and power requirements for the 395T model.





