Sidecar rack

The Sidecar Power Rack: Layer 4 and the OCP-spec ecosystem (DC-DC Supplement E)

The sidecar power rack is the specific Layer 4 architecture that OCP Mt. Diablo (v0.7.0, March 2026) established as the reference for hyperscaler AI-density deployments. Physical separation of rack-level power conversion (800V DC to 48V DC) from the IT compute rack. Enables specialised thermal