March 31, 2025 – Singapore-based Canaan Inc., a pioneering name in ASIC Bitcoin mining hardware, has officially started shipping its latest innovation: the Avalon Immersion Cooling Miner A1566I. This third-generation immersion-cooled miner is making waves in the crypto mining community with its staggering hash rate of 261 trillion hashes per second (261 TH/s), as reported in recent posts on X. The A1566I promises to redefine efficiency and performance standards in Bitcoin mining, aligning with the industry’s growing demand for sustainable and high-powered solutions.

A Leap in Mining Technology

Canaan, established in 2013 and known for creating the world’s first ASIC Bitcoin miner, has been a key player in the blockchain hardware space. The A1566I, first unveiled at the Mining Disrupt 2024 conference in Miami, builds on Canaan’s legacy of innovation. According to details from Canaan’s official announcements, the miner delivers a hash rate of 249 TH/s with an energy efficiency of 19 joules per terahash (J/TH) and a power consumption of 4500W. However, recent buzz on X suggests that the A1566I has achieved an even higher hash rate of 261 TH/s, potentially due to overclocking capabilities or firmware updates since its initial launch.

The A1566I’s immersion cooling technology sets it apart from traditional air-cooled miners. By submerging its electrical components in a non-conductive dielectric fluid, the miner efficiently dissipates heat, reducing noise pollution and enhancing performance. This method not only extends the hardware’s lifespan but also aligns with Canaan’s environmental, social, and governance (ESG) strategy. At Mining Disrupt 2024, Canaan’s Vice President, Ning Zhang, emphasized the company’s commitment to green mining, announcing a 2% voucher for miners using renewable energy sources for their orders.

Why Immersion Cooling Matters

Immersion cooling is increasingly seen as the future of Bitcoin mining, especially as the industry grapples with rising energy costs and environmental concerns. Unlike air-cooled systems that rely on noisy fans and extensive ventilation, immersion cooling uses a dielectric fluid to absorb heat directly from the miner’s components. This results in a near-silent operation and a significant reduction in energy waste. Canaan claims the A1566I can improve power efficiency by up to 78% compared to its air-cooled predecessors like the Avalon A1246.

The A1566I’s design also addresses practical challenges in mining operations. Weighing just 11kg, the miner is lightweight and easy to install, capable of operating in temperatures ranging from 20°C to 50°C. Its compatibility with existing tank setups makes it a versatile choice for both large-scale mining farms and smaller operations. For miners, this means lower operational costs and a higher return on investment (ROI), particularly in the post-halving era where mining rewards have decreased, and efficiency is more critical than ever.

Performance and Market Impact

The reported hash rate of 261 TH/s positions the A1566I as a powerhouse in the Bitcoin mining landscape. To put this into perspective, a single A1566I unit can perform 261 trillion calculations per second to solve the cryptographic puzzles required to mine Bitcoin. This level of computational power is a significant leap forward, especially when compared to Canaan’s earlier models like the A1066I, which delivered 50 TH/s, or even the A1566I’s initial specs of 249 TH/s.

However, while the A1566I’s energy efficiency of 19 J/TH is impressive, it still lags behind some competitors. For instance, Bitmain’s Antminer S21 immersion-cooling model reportedly achieves an efficiency of 13.5 J/TH. This gap suggests that while Canaan is pushing boundaries in hash rate and cooling technology, there’s still room for improvement in energy optimization—a critical factor as electricity costs remain a major concern for miners worldwide.

The timing of the A1566I’s shipping is noteworthy. With Bitcoin’s fourth halving in 2024 reducing block rewards, miners are under pressure to maximize efficiency and output. The A1566I’s high hash rate and low power consumption make it an attractive option for those looking to stay competitive. Additionally, Canaan’s focus on sustainability could appeal to a growing segment of the market that prioritizes eco-friendly practices, especially as governments and regulators scrutinize the environmental impact of crypto mining.

Canaan’s Broader Vision

Canaan’s rollout of the A1566I is part of a broader strategy to innovate and expand its footprint in the Bitcoin mining industry. The company has been making headlines with other recent launches, such as the Avalon Q, a professional-grade mining machine designed for home users, which debuted at Mining Disrupt 2025 earlier this month. Canaan also announced plans to showcase cutting-edge mining solutions at the Mining Disrupt Conference 2025 in Fort Lauderdale, signaling its ongoing commitment to advancing the sector.

The A1566I’s shipping from Singapore marks a significant milestone for Canaan, which has been a Nasdaq-listed company since its IPO in 2019. The company’s focus on high-performance computing chip design and sustainable mining solutions positions it as a leader in an increasingly competitive market. As more miners adopt immersion cooling technology, Canaan’s early investment in this area could give it a strategic edge.

What’s Next for Bitcoin Mining?

The A1566I’s launch comes at a pivotal moment for the Bitcoin ecosystem. With the Federal Reserve expected to cut interest rates twice in 2025, some analysts predict a potential boost in Bitcoin’s price, which could further incentivize mining activity. However, miners will need to balance this optimism with the reality of rising operational costs and regulatory pressures, particularly around energy consumption.

For now, the A1566I represents a step forward in addressing these challenges. Its combination of high hash rate, energy efficiency, and sustainable design makes it a compelling choice for miners looking to future-proof their operations. As Canaan continues to innovate, the A1566I could set a new standard for what’s possible in Bitcoin mining, paving the way for a more efficient and environmentally conscious industry.

Whether the A1566I will live up to its hype remains to be seen, but one thing is clear: Canaan is not slowing down in its mission to empower the Bitcoin network with cutting-edge technology. For miners in Brazil and beyond, this new miner could be a game-changer in their quest to capitalize on the growing adoption of Bitcoin.