Microsoft's Maia 300 rack: 96 accelerators, HBM4, mostly liquid-cooled

DIGITIMESOctober 12, 2026en

Microsoft has released architecture details for Maia 300, its third-generation Azure AI accelerator. The design pairs 96 accelerators per rack with a two-tier network that links up to 12,288 accelerators into a single superpod. The company says the system is built for cloud-scale agentic inference, and that it co-designed the software, silicon, rack infrastructure, networking, and data centers to run as one platform.

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