Bitdeer SealMiner A3 Air (260 TH/s) — High-Efficiency Air-Cooled Bitcoin Miner
Overview
The Bitdeer SealMiner A3 Air is a powerful, air-cooled SHA-256 ASIC miner designed for maximum efficiency and reliability. Delivering an impressive 260 TH/s hashrate at only 3,940 W, the A3 Air combines top-tier performance with excellent energy efficiency at 15.2 J/TH.
Engineered by Bitdeer, a global leader in blockchain infrastructure and mining technology, the A3 Air offers the perfect balance of performance, power, and practicality — making it ideal for both professional and large-scale Bitcoin mining operations.
Key Features
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⚡ Hashrate: 260 TH/s (±10%)
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🔋 Power Consumption: 3,940 W (±5%)
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💰 Energy Efficiency: 15.2 J/TH — optimized for profitability
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🧊 Cooling System: Dual high-efficiency air fans with smart temperature control
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🔇 Noise Level: ~75 dB (standard for industrial air-cooled miners)
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🌐 Network Connection: Ethernet (LAN)
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⚙️ Algorithm: SHA-256 (Bitcoin, Bitcoin Cash, etc.)
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🖥️ Design: Compact, rack-mountable chassis for easy deployment
Performance & Efficiency
With its 260 TH/s hashrate and 3,940 W power draw, the SealMiner A3 Air delivers an outstanding hash-to-power ratio for air-cooled Bitcoin miners. It achieves a remarkable 15.2 J/TH, making it one of the most energy-efficient miners in its category.
Engineered with Bitdeer’s advanced power management system and optimized air-cooling design, the A3 Air provides consistent, stable operation for 24/7 mining, maintaining efficiency and reliability over long periods of use.
Air-Cooling System
The A3 Air uses a dual-fan airflow design to ensure maximum heat dissipation. Intelligent fan control automatically adjusts speeds based on temperature, maintaining ideal internal conditions while balancing performance and noise.
This system enables reliable mining in both small-scale and professional environments, requiring no external cooling infrastructure.
Industrial Design & Build Quality
Crafted with a high-strength aluminum chassis, the SealMiner A3 Air is both durable and efficient in heat conduction. Its compact footprint allows for dense rack deployment and simplified maintenance, making it a solid choice for scalable operations.
Specifications
| Specification | Details |
|---|---|
| Model | Bitdeer SealMiner A3 Air |
| Hashrate | 260 TH/s ±10% |
| Power Consumption | 3,940 W ±5% |
| Energy Efficiency | 15.2 J/TH ±5% |
| Algorithm | SHA-256 |
| Cooling Method | Air (dual-fan system) |
| Noise Level | ~75 dB |
| Voltage Input | 200–240 V AC |
| Dimensions | 430 × 195 × 290 mm |
| Weight | 14.5 kg |
| Operating Temperature | 0 °C – 35 °C |
| Release Year | 2025 |
Why Choose the Bitdeer SealMiner A3 Air
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✅ High Performance: 260 TH/s of steady, reliable mining power
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✅ Energy-Efficient: 15.2 J/TH for lower electricity costs
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✅ Plug-and-Play Design: Easy to install and manage via web interface
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✅ Trusted Brand: Developed by Bitdeer, a global leader in ASIC mining
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✅ Durable Air-Cooled System: Reliable performance without the complexity of liquid cooling
Package Includes
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1 × Bitdeer SealMiner A3 Air Miner
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1 × Power Cable (regional plug)
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1 × Quick Start Guide
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Warranty and Support Documentation
Ideal For
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Professional mining farms and data centers
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Mid-scale operations requiring efficient, air-cooled hardware
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Miners seeking lower maintenance and simple installation
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Operators optimizing ROI through efficient SHA-256 mining
Conclusion
The Bitdeer SealMiner A3 Air (260 TH/s) combines strong hashrate output, exceptional efficiency, and proven reliability in a compact, air-cooled form factor. Designed for consistent 24/7 mining, it offers a cost-effective, powerful solution for both established farms and new Bitcoin mining ventures.
With low energy consumption, durable construction, and trusted Bitdeer engineering, the A3 Air is a smart, sustainable investment for serious SHA-256 miners.
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