Hut 8 Corp. has announced an expanded partnership with Bitmain Technologies, unveiling the U3S21EXPH, a next-generation ASIC miner. The launch represents a significant milestone, with plans for deployment in Q2 2025 and a potential transition to self-mining through a purchase option.
860 Terahash — Hut 8 and Bitmain Partner to Launch New Direct Liquid-to-Chip ASIC Miner
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Hut 8 and Bitmain Partner on Innovative Miner to Boost Bitcoin Mining Infrastructure
The U3S21EXPH is the first mass-commercialized ASIC miner by Bitmain to feature direct liquid-to-chip (DLC) cooling technology, allowing for enhanced performance and efficiency. Capable of achieving up to 860 terahash per second (TH/s) at 13 joules per terahash, the miner introduces a rack-ready form factor commonly used in high-performance computing (HPC) data centers.
Direct liquid-to-chip (DLC) cooling takes mining machines to the next level by whisking away heat right from the source, letting them run faster without breaking a sweat. This means they can crank out more terahash per second while sipping less power. Plus, the boosted energy efficiency slashes the joules per terahash (J/TH), making these types of machines both supercharged and budget-friendly.

Hut 8, which contributed to its development, plans to deploy the miner at a density of up to 180 kilowatts per rack, leveraging custom-designed data center infrastructure. According to the announcement, Hut 8’s partnership with Bitmain includes a creatively structured hosting agreement, covering approximately 15 exahash per second (EH/s) of hosted machines.
The agreement, the companies disclosed, includes a fixed-price purchase option for Hut 8, providing flexibility to transition some or all hosted machines to self-mining. The deployment is expected to increase Hut 8’s hashrate under management to approximately 33.5 EH/s, with the option to boost its self-mining hashrate significantly.
The U3S21EXPH’s commercialization aims to strengthen Hut 8’s growth in both bitcoin mining and AI infrastructure, further advancing its power-first strategy. “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, the CEO of Hut 8 remarked on Thursday.
What do you think about the new ASIC miner Hut 8 and Bitmain plans to deploy? Share your thoughts and opinions about this subject in the comments section below.
About the author
WRITTEN BYJamie RedmanNews Lead
Jamie Redman is the News Lead at Bitcoin.com News and a financial technology journalist based in Massachusetts.















