Bitcoin Miner IREN to Expand AI Capacity with 50,000 Nvidia B300 GPUs

IREN, a prominent Bitcoin mining firm formerly known as Iris Energy, has announced a significant expansion of its high-performance computing capabilities. The company revealed plans to acquire more than 50,000 Nvidia B300 GPUs, bringing its projected total fleet to 150,000 units. This strategic move highlights the ongoing pivot of cryptocurrency mining entities toward AI cloud services, leveraging existing energy infrastructure to support the intensive computational requirements of artificial intelligence.

Scaling Vertical AI Infrastructure

The acquisition is specifically designed to bolster IREN's vertically integrated AI infrastructure solutions. By integrating the latest generation of Nvidia hardware, the company aims to address the global shortage of high-tier processing power. Management emphasized that the current market environment prioritizes "speed to market", suggesting that the rapid deployment of hardware is a critical competitive advantage for AI Cloud providers.

• The expansion brings total GPU capacity to 150,000 units.
• Deployment is scheduled to occur in phases starting in the second half of 2026.
• The focus remains on providing high-performance computing (HPC) for third-party developers and enterprise AI projects.

Strategic Shift in the Mining Sector

The decision to invest heavily in Blackwell-architecture chips (Nvidia B300) reflects a broader trend among Proof-of-Work (PoW) miners seeking to diversify revenue streams. While Bitcoin mining remains a core operation, the transition to multi-purpose data centers allows these firms to capitalize on higher margins offered by the generative AI boom. The Nvidia B300 series is part of the Blackwell lineup, designed to provide substantial improvements in large language model (LLM) training and inference compared to previous generations.

In summary, IREN’s expansion represents one of the most substantial hardware commitments in the sector to date. By securing 50,000 advanced GPUs for a 2026 rollout, the company positions itself as a major infrastructure player at the intersection of blockchain technology and artificial intelligence. This growth strategy underscores the increasing technical convergence between digital asset mining and the broader global computing economy.