The Sealminer A3 Pro Air is Bitdeer’s response to the demand for ultra-high-density hashing without the complexity of hydro-cooling. By integrating the SEAL03 architecture, Bitdeer has achieved a 12.5 J/TH rating-placing this air-cooled unit in the same efficiency bracket as many competing liquid-cooled models.
Powered by the SEAL03 4nm Architecture
The A3 Pro Air utilizes the latest binned SEAL03 chips, manufactured on an advanced 4nm process node. This hardware is specifically tuned for the SHA-256 algorithm, allowing for:
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Lower Operating Voltage: Achieving higher hashrates with significantly less heat generation.
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Energy Savings: Consuming only 3625W for a 290T output, resulting in lower monthly electricity bills compared to older 200T units.
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Future-Proofing: Its 12.5 J/TH efficiency ensures a longer “economic life” for the machine, staying profitable deep into the next halving cycle.
Industrial Thermal Engineering & Stealth Operation
While most high-power miners are notoriously loud, the A3 Pro Air is engineered for a “Smarter Mining” environment:
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Quiet-Flow Technology: The internal airflow path is aerodynamically optimized to be 3–4 dB quieter than standard Antminer models, making it ideal for facilities with noise restrictions.
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Quad-Fan Cooling: Four industrial-grade 120mm fans provide massive static pressure to keep the high-density hash boards within the optimal 20°C to 45°C range.
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High-Efficiency PSU: The integrated power supply unit boasts a 97% conversion efficiency, drastically reducing energy waste and heat dissipation from the power stage.
Technical Specifications Overview
| Feature | Specification |
| Manufacturer | Bitdeer |
| Model | Sealminer A3 Pro Air (290 TH/s) |
| Algorithm | SHA-256 (BTC, BCH, BSV) |
| Hashrate | |
| Power Consumption | |
| Power Efficiency | |
| Chip Technology | SEAL03 (4nm Optimized) |
| Voltage Input | 220V – 277V |
| Noise Level | (Low-noise design) |
| Dimensions | |
| Net Weight |
Why Buy the A3 Pro Air from CryptoMiners24?
When investing in 2025’s leading technology, reliability is paramount. CryptoMiners24 provides:
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Certified New Stock: 100% genuine, factory-sealed Bitdeer units with verified manufacturer warranties.
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Insured Global Delivery: Rapid shipping to North America, Europe, and UAE via DHL and FedEx.
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Secure Crypto Transactions: Pay with Bitcoin (BTC), USDT (TRC20), or traditional Bank Wire.
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Scale-Up Support: We specialize in bulk procurement for industrial farms; contact our team for volume discounts on the A3 Pro series.
Pro Tip: The Sealminer A3 Pro Air requires a 220V–277V power source and a high-gauge C19 power cable. For maximum chip longevity, ensure your facility maintains a humidity level between 10% and 90% (non-condensing).
