Product details
Ultra-High Performance Hydro-Cooled SHA-256 Mining
395 TH/s | 5370W | Advanced Hydro-Cooled Bitcoin Miner
The Bitmain Antminer S21+ Hydro is a next-generation hydro-cooled ASIC miner built for professional Bitcoin mining operations demanding maximum performance, efficiency, and long-term stability.
Delivering an impressive 395 TH/s of SHA-256 mining power while maintaining outstanding efficiency at approximately 15 J/TH, the S21+ Hydro is engineered to provide industrial-scale mining performance with optimized energy consumption.
Equipped with advanced liquid cooling technology, enterprise-grade hardware architecture, and reduced operational noise, the Antminer S21+ Hydro is ideal for large-scale mining farms, data centers, and professional hosting facilities.
Key Features
⚡ Exceptional Bitcoin Mining Performance
Delivers up to 395 TH/s optimized for Bitcoin (BTC) and SHA-256 mining.
💧 Advanced Hydro Cooling Technology
Integrated hydro-cooling system improves heat dissipation, operational stability, and hardware lifespan.
🔋 Industry-Leading Energy Efficiency
Operates at approximately 15 J/TH, helping reduce electricity costs while maximizing mining performance.
🔇 Reduced Noise Operation
Hydro cooling minimizes operational noise to approximately 40–50 dB, quieter than traditional air-cooled ASIC miners.
🏭 Enterprise-Grade Build Quality
Designed for continuous 24/7 operation in professional mining environments.
🌐 Stable Ethernet Connectivity
Integrated Ethernet networking ensures reliable mining communication and deployment.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Bitmain |
| Model | Antminer S21+ Hydro |
| Algorithm | SHA-256 |
| Supported Coins | Bitcoin (BTC), Bitcoin Cash (BCH) |
| Hashrate | 395 TH/s |
| Power Consumption | 5370W |
| Energy Efficiency | 15 J/TH |
| Cooling Type | Hydro Cooling |
| Noise Level | 40–50 dB |
| Voltage | 380–415V AC |
| Interface | Ethernet |
| Dimensions | 340 × 180 × 210 mm |
| Operating Temperature | 0°C – 40°C |
| Warranty | 360 Days |
Supported Cryptocurrencies
The Antminer S21+ Hydro supports all SHA-256 algorithm cryptocurrencies, including:
- Bitcoin (BTC)
- Bitcoin Cash (BCH)
- Other SHA-256-based coins
Why Choose the Antminer S21+ Hydro?
Extreme Mining Power
Built for miners seeking ultra-high hashrate performance and industrial-scale mining capability.
Superior Thermal Management
Hydro cooling technology delivers improved temperature control and operational efficiency.
Enhanced Hardware Longevity
Stable operating temperatures help reduce hardware stress and improve long-term reliability.
Lower Operational Noise
Compared to air-cooled ASIC miners, hydro cooling significantly reduces acoustic output.
Optimized for Large-Scale Mining
Perfect for mining farms, professional hosting environments, and data center deployment.
Hydro Cooling Requirements
The Antminer S21+ Hydro requires an external liquid cooling infrastructure for proper operation.
Recommended Coolants
- Deionized Water
- Pure Water
Power Requirements
- 380–415V 3-phase AC power
- 50–60 Hz input frequency
- Maximum input current: 12A
Professional installation and proper coolant monitoring are recommended for optimal performance.
Frequently Asked Questions
What cryptocurrencies can this miner mine?
The S21+ Hydro mines Bitcoin (BTC), Bitcoin Cash (BCH), and all SHA-256-based cryptocurrencies.
Is this miner suitable for home use?
No. Due to its industrial power requirements and hydro-cooling setup, it is best suited for mining farms and professional environments.
Does the hydro cooling system require maintenance?
Yes. Regular monitoring of coolant flow, water quality, and temperature is recommended for stable long-term operation.
What power setup is required?
A 380–415V AC 3-phase power source is required.
Is the miner noisy?
No. Hydro cooling helps maintain significantly lower noise levels compared to traditional air-cooled miners.
Package Includes
- 1× Bitmain Antminer S21+ Hydro
- Integrated Hydro Cooling Components
- Ethernet Connectivity
- User Documentation
External coolant loop system required.
Warranty Information
- Includes manufacturer warranty coverage
- Warranty follows official Bitmain warranty guidelines
- Hardware professionally tested before shipment
Terms of Sale
- Payment proof required within 24 hours of order placement
- Units are reserved only after payment confirmation
- All sales are final — no refunds available
Shipping & Support
Professional customer support is available before and after purchase to assist with setup, deployment, and operational guidance.









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