What is Mount Diablo?

The OCP reference specification for AI rack architecture contributed by Meta, first disclosed at OCP Global Summit 2024. Disaggregated rack with sidecar power shelf and DC busbar interface.

How is Mount Diablo different from Nvidia Kyber?

Mount Diablo is an open OCP spec; Kyber is Nvidia proprietary. Meta commissioned Mount Diablo to commoditise the rack-integration layer; Nvidia holds Kyber proprietary to capture that same margin.

Which vendors matter for Mount Diablo exposure?

Delta Electronics on the sidecar power shelf. Vertiv on cross-plane content. Schneider Electric on cross-portfolio P3-P5 reach. Eaton on adjacent product-line depth. Amphenol and TE Connectivity on busbar interconnect.

Grid-to-Chip

Mount Diablo: The Open Rack Architecture That Forced NVIDIA Up the Stack

31 August 2026 · 34 min read

Mount Diablo rack architecture: four vendor content planes (sidecar rack, busbar, AC-DC / SST, near-die conversion). Meta OCP open spec vs Nvidia Kyber proprietary.

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