The Sealminer A3 Air (260T) represents a technological leap for the industry. By moving away from generic silicon and utilizing the proprietary SEAL03 wafer, Bitdeer has achieved an efficiency breakthrough that bridges the gap between mid-range air units and high-end hydro-cooling performance.
Next-Gen 14 J/TH Efficiency & SEAL03 Chips
The heart of the A3 Air is the SEAL03 chip, which was designed for maximum output at low voltage. At 3640W, the A3 Air maintains a consistent 14 J/TH efficiency, making it one of the most profitable assets for miners operating in a post-halving 2025 market. This efficiency ensures that your operational overhead remains low even during periods of high network difficulty.
Refined Low-Noise & Thermal Engineering
Unlike standard ASICs that produce high-frequency whine, the A3 Air features an optimized “Smarter Mining” fan configuration:
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Industrial Quad-Fan System: Four high-velocity fans provide a high-pressure air tunnel, keeping the SEAL03 chips at optimal operating temperatures (typically between -20°C and 45°C).
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Acoustic Optimization: The A3 Air is designed to operate 3–4 dB quieter than competing models like the Antminer S21 series, reducing noise pollution in high-density hosting environments.
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97% Power Supply Efficiency: The integrated high-efficiency PSU minimizes energy waste, ensuring that more power goes directly to hashing and less to waste heat.
Technical Specifications Overview
| Feature | Specification |
| Manufacturer | Bitdeer |
| Model | Sealminer A3 Air (260 TH/s) |
| Algorithm | SHA-256 (BTC, BCH, BSV) |
| Hashrate | |
| Power Consumption | |
| Power Efficiency | |
| Chip Technology | SEAL03 (4nm Optimized) |
| Noise Level | |
| Dimensions | |
| Net Weight | |
| Operating Temp | to |
Why Choose CryptoMiners24 for your Sealminer A3?
As the global market shifts toward self-developed chips like the SEAL03, CryptoMiners24 remains your trusted partner for procurement:
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100% Factory Direct: We guarantee all A3 Air units are brand new and shipped with official Bitdeer manufacturer warranties.
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Insured Worldwide Shipping: Fast delivery to over 100 countries via DHL, FedEx, and UPS.
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Crypto-Friendly Payments: Secure your order using Bitcoin (BTC), USDT, or Bank Wire transfers.
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Technical Onboarding: Our experts assist with bulk deployments and local network optimization for the Sealminer series.
Pro Tip: The Sealminer A3 Air requires a 220V–277V power source. Due to its advanced chip architecture, it is highly sensitive to voltage stability; we recommend using a professional-grade PDU (Power Distribution Unit) for industrial scaling.
