Hut8 & Bitmain to Launch of Next-Gen ASIC Miner U3S21EXPH

• "Hut 8 is launching a next-generation ASIC miner developed in partnership with BITMAIN. The U3S21EXPH will be the first ASIC miner mass-commercialized by BITMAIN to feature direct liquid-to-chip (DLC) cooling within a U form factor," announced Hut 8.
• According to the firm, U3S21EXPH can reach up to 860 TH/s with an efficiency of 13 J/TH. This model is the result of a partnership between Hut 8 and BITMAIN, where Hut 8 supported both technical and commercial development.

"Hut 8 plans to deploy the model in Q2 2025 through a ~15 EH/s hosting deployment with potential transition to self-mining through purchase option," was stated in the announcement.

• To maximize the potential of the U3S21EXPH, Hut 8 has created a custom Bitcoin mining data center design inspired by traditional rack-based architecture.This will support an initial deployment of ~15 EH/s at a density of up to ~180 kW per rack. The initial agreement is expected to increase Hut 8’s hash rate under management from 18.5 EH/s to around 33.5 EH/s, according to the release.

"Our partnership with BITMAIN has allowed us to advance our thinking on ASIC compute and create a more scalable model for data center design as we expand our footprint," Asher Genoot, CEO of Hut 8 was quoted as saying.

Key advancements

• Technology: "Introduces DLC cooling technology used in high-performance computing (“HPC”) data centers to a rack-ready form factor for Bitcoin mining."
• Engineering: "Evolution from “shoebox” ASIC form factor incompatible with traditional data center rack architecture to “U” form factor compatible with HPC-style architecture that can be deployed at densities of up to ~180 kilowatts (“kW”) per rack."
• Procurement: "Strong overlap in secondary components with HPC data centers, including racks and cooling systems required for DLC technology, driving the opportunity for greater supply chain synchronization across Bitcoin mining and HPC data centers."
• Construction: "Opportunity to apply construction expertise and capabilities across Bitcoin mining and HPC data centers."

An X Spaces discussion of the announcement is available below.

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