The Sealminer A2 (230T) represents a major milestone for Bitdeer, transitioning from generic silicon to the custom-developed SEAL02 wafer. This 4nm architecture is specifically tuned to maximize hash density while minimizing heat generation, offering a “best bang-for-your-buck” solution in the 2026 mining landscape.
Next-Gen 16.5 J/TH Efficiency
At the heart of the A2 is the SEAL02 chip, designed for maximum output at low voltage. At 3795W, the A2 maintains a consistent 16.5 J/TH efficiency in normal mode. For miners looking to customize their strategy, the A2 features flexible operating modes:
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High Performance Mode: Boosts output for maximum hashrate during market rallies.
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Low Power Mode: Lowers efficiency to as low as 15.5 J/TH for high-electricity cost environments.
Whisper-Quiet Thermal Engineering
Unlike standard ASICs that produce high-frequency noise pollution, the Sealminer A2 features an optimized “Smarter Mining” airflow design:
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Redesigned Fan Blades: The industrial quad-fan system is aerodynamically tuned to be 3-4 dB quieter than competing flagship models.
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Superior Heat Dissipation: The reinforced aluminum chassis acts as a secondary heatsink, allowing the unit to operate steadily in ambient temperatures ranging from -20°C to 50°C.
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97% Power Efficiency: The integrated PSU reduces energy waste, ensuring that more power goes directly to hashing and less to atmospheric heat.
Technical Specifications Overview
| Feature | Specification |
| Manufacturer | Bitdeer |
| Model | Sealminer A2 (230 TH/s) |
| Algorithm | SHA-256 (BTC, BCH, BSV) |
| Hashrate | |
| Power Consumption | |
| Power Efficiency | |
| Chip Technology | SEAL02 (4nm Optimized) |
| Noise Level | |
| Dimensions | |
| Net Weight | |
| Operating Temp | to |
Why Choose CryptoMiners24 for your Sealminer A2?
As a trusted partner for global mining procurement, CryptoMiners24 ensures a premium experience:
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100% Brand New Stock: All units are factory-sealed and shipped with official manufacturer warranties.
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Insured Worldwide Shipping: Rapid delivery to North America, Europe, UAE, and beyond via DHL and FedEx.
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Secure Crypto Payments: We accept Bitcoin (BTC), USDT (TRC20), and traditional Bank Wire transfers.
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Technical Onboarding: Our team provides assistance with initial pool setup and network configuration for the A2 series.
Pro Tip: The Sealminer A2 requires a 220V-277V power source. Because of its advanced 4nm architecture, it is sensitive to voltage fluctuations; we recommend using a professional-grade PDU (Power Distribution Unit) for high-density setups.
