Setup & support
Shipping
Refunds & returns
Warranty
Overview
The SealMiner A2 Pro Hydro series represents Bitdeer’s foray into liquid-assisted cooling for mid- to high-tier SHA-256 ASIC miners. This lineup brings hydro-cooled performance to the SealMiner family, providing sustained hashing power with reduced dependence on internal fan speed and airflow alone.
The variants in this series are typically rated around 504 TH/s, 508 TH/s, and 510 TH/s, depending on factory tuning and chip binning. Typical power consumption for these units falls in the ~8,000 W to 8,500 W range under full load when correctly integrated with an external radiator or cooling loop system. The hydro-cooled design helps maintain lower junction temperatures on the hashing chips, which can result in improved efficiency and stability during extended 24/7 operation.
These miners were introduced in mid-2025 as Bitdeer expanded its SealMiner line beyond air-cooled units, responding to demand for more efficient cooling solutions that suit higher-wattage environments without resorting to large fan arrays.
Manufacturer
Bitdeer is a global blockchain infrastructure and mining hardware company that has expanded beyond mining operations into integrated hardware design with its SealMiner brand. Leveraging real-world mining experience, Bitdeer focuses on delivering hardware that aligns performance with operational stability, firmware support, and build quality suitable for retail and professional mining deployments.
The SealMiner series allows Bitdeer to compete in the mid-to-high hashrate ASIC space with a focus on usable power efficiency and practical heat management. Hydro-cooled variants demonstrate Bitdeer’s investment in alternative thermal solutions while maintaining the company’s broader ecosystem support and compatibility with major mining pools and management tools.
Efficiency
The SealMiner A2 Pro Hydro series delivers strong energy efficiency through its liquid-assisted cooling architecture. Effective efficiency across the 504T–510T range is typically around ≈8.0–9.0 J/TH under well-engineered hydro-cooled conditions. This reflects the joules of energy required per terahash of SHA-256 work and is achieved by managing chip temperatures more effectively than air-cooled designs.
With typical power draw in the ~8,000–8,500 W range, the hydro-cooled architecture reduces waste heat and maintains thermal headroom for sustained 24/7 hashing performance. These improvements matter for retail miners in the UK and EU who must weigh electricity cost against throughput and overall efficiency.
Algorithm
The Bitdeer SealMiner A2 Pro Hydro series runs the SHA-256 proof-of-work algorithm, which is the cryptographic hashing function that underpins Bitcoin (BTC) and other SHA-256-based networks. These miners contribute computing power to secure the network and compete for block rewards and transaction fees by solving cryptographic puzzles under the SHA-256 scheme.
Although it is technically possible to point SHA-256 miners at other compatible coins, most operators focus on Bitcoin mining due to its liquidity and dominant network share.
Lifespan
ASIC miners like the Bitdeer SealMiner A2 Pro Hydro series are designed for continuous 24/7 operation and can remain productive for 3–5 years with proper maintenance and cooling. Hydro-cooled units benefit from lower operating temperatures, which can reduce thermal stress on chips and supporting components compared with high-speed fan-cooled hardware.
Lifespan depends on factors such as the quality of the radiator/cooling loop setup, power quality, and dust control. In a well-managed home mining environment, periodic maintenance of coolant pathways and monitoring of thermal performance help maximise uptime. Because these models were released in mid-2025, they remain part of the current generation of high-efficiency SHA-256 miners and should remain relevant as long as network economics support SHA-256 mining activity.