Bitdeer SealMiner A3 Hydro (500Th/s)

The Bitdeer SealMiner A3 Hydro is a robust hydro-cooled ASIC miner engineered exclusively for the SHA-256 algorithm, delivering dependable processing power for Bitcoin (BTC) mining. Released in September 2025, this enterprise-grade hydro-cooled solution achieves a solid hash rate of 500 Th/s while drawing 6750W of power, resulting in a reliable energy efficiency of 13.5 J/Th. As the base model of the A3 Hydro series, the SealMiner A3 offers a proven and cost-effective entry point into professional liquid-cooled Bitcoin mining, delivering stable performance and exceptional value for operators seeking to scale their SHA-256 operations with the enhanced thermal management, whisper‑quiet operation, and sustainable heat repurposing capabilities of integrated liquid cooling.

At the heart of the A3 Hydro lies its advanced hydro-cooling system, which delivers superior thermal dissipation through a closed-loop liquid‑cooling architecture. This sophisticated cooling solution ensures optimal operating temperatures even under sustained maximum load, dramatically reducing hardware degradation and extending operational lifespan far beyond traditional air‑cooled systems. The system operates at an astonishingly quiet 50dB—unprecedented for a machine delivering half a petahash of computational power—making it ideal for facilities with strict noise regulations, residential areas, or urban data centers where acoustic pollution is a primary concern. Furthermore, the waste heat can be captured and repurposed for industrial heating, greenhouse agriculture, or district heating systems, transforming operational expenses into sustainable energy assets and improving overall facility efficiency.

Engineered for enterprise‑scale deployments, the A3 Hydro adopts a sleek, rack‑optimized form factor, measuring 482 x 665 x 86mm (standard 2U height) and weighing 20,500g. This standardized footprint enables seamless integration into high‑density 19‑inch server racks, delivering impressive hash rate density—a single unit does the work of multiple air‑cooled miners, drastically reducing physical space requirements and infrastructure costs. The unit operates on high‑voltage 380V – 480V three‑phase power input, reflecting its design for professional data centers and industrial mining facilities. Connectivity is facilitated through a robust Ethernet interface, guaranteeing low‑latency communication and effortless integration with all major mining management platforms. Built to thrive in demanding environments, the A3 Hydro maintains flawless performance across a wide temperature range of 5 to 45°C and supports relative humidity levels between 5% and 95%.

By investing in the Bitdeer SealMiner A3 Hydro, you are securing a reliable, future‑proof mining asset that delivers hydro‑cooled performance with whisper‑quiet operation, exceptional thermal management, and enterprise‑grade build quality. Whether you are establishing a new liquid‑cooled operation, expanding an existing SHA‑256 fleet, or seeking a dependable workhorse for enterprise‑grade deployment, the A3 Hydro stands as a trusted foundation for operators who demand dependable performance, operational reliability, and optimized total cost of ownership in a hydro‑cooled package.