# Nvidia Opens Vera Rubin Rack Designs at OCP; Meta Adopts Spectrum-6 Switches

Times of AI Desk · 2026-10-13 · Infrastructure

[https://timesof.ai/2026/10/nvidia-ocp-vera-rubin-mgx-open-designs-meta-spectrum-6](https://timesof.ai/2026/10/nvidia-ocp-vera-rubin-mgx-open-designs-meta-spectrum-6)

> At the OCP Global Summit on Oct. 12, Nvidia contributed Vera Rubin rack and compute-tray designs through its MGX architecture, including an MGX 1.2 spec for racks up to 250 kW and a Vera CPU rack for agent workloads. Meta said it will adopt Spectrum-6 Ethernet switches, Nvidia and Cisco unveiled USFP optics for 400 Gb/s-per-lane fabrics, and Nvidia co-published open data-center and grid-resilience specs.

At the **Open Compute Project Global Summit** in San Jose on Monday, October 12, Nvidia contributed **Vera Rubin** rack and compute-tray designs to OCP through its open **MGX** architecture, the company said in a blog post. Vera Rubin itself was [unveiled at GTC in March](https://timesof.ai/2026/03/nvidia-vera-rubin-platform-for-agentic-ai-unveiled-at-gtc); this is the follow-on step of opening its hardware designs.

## What Nvidia announced

- **MGX 1.2:** adds rack-scale blind-mate liquid cooling and a liquid-cooled 5,000A busbar, and supports rack deployments up to **250 kW**, Nvidia says.
- **A CPU rack for agents:** a Vera CPU rack specification designed for "tool calling, orchestration and sandboxed execution" alongside Vera Rubin NVL72 systems. Nvidia's Joe DeLaere told a press briefing that dedicated Vera racks are "shipping now," with over 20,000 cores per rack, **SDxCentral** reports.
- **Meta networking:** Meta is adopting Nvidia **Spectrum-6** 102.4 Tb/s Ethernet switches to build larger Vera Rubin deployments on open networking.
- **Optics:** Nvidia and **Cisco** announced plans for **USFP**, a pluggable optics form factor providing a path to 400 Gb/s per lane.
- **Facility specs:** Nvidia joined AMD, Google and Meta in publishing an Open Data Center Specification v0.7, and Google, Meta, Microsoft and Nvidia published an OCP Grid Resilience Specification. Nvidia also released open-source components for its DSX AI Factory software.

## CPUs for agents

On the same day, Intel CEO Lip-Bu Tan said frontier model companies were asking for more CPUs for inference orchestration and reinforcement learning, Computer Weekly reported in its coverage of the DBS conference in Singapore.

## Limits

- These are vendor announcements; Nvidia gave no pricing, and apart from the Vera rack, no shipment dates.
- The Vera performance claims reported by SDxCentral are Nvidia's own and are not repeated here.

## Sources

- [NVIDIA Blog: OCP Global Summit: Amid Ecosystem Adoption, NVIDIA Opens Vera Rubin Architecture to Help Scale AI Factories Worldwide (October 12, 2026)](https://blogs.nvidia.com/blog/ocp-global-summit-vera-rubin-scale-ai-factories/)
- [SDxCentral: Nvidia gears up to smash CPU hegemony as Vera starts shipping (October 2026)](https://www.sdxcentral.com/news/nvidia-gears-up-to-smash-cpu-hegemony-as-vera-starts-shipping/)
- [Computer Weekly: Capital, not chips, may be the real brake on the AI build-out (October 12, 2026)](https://www.computerweekly.com/news/366652046/Capital-not-chips-may-be-the-real-brake-on-the-AI-build-out)
- [Times of AI: Nvidia Vera Rubin platform unveiled at GTC](https://timesof.ai/2026/03/nvidia-vera-rubin-platform-for-agentic-ai-unveiled-at-gtc)