NVIDIA's Kyber rack-scale architecture, set to feature the 2027 Rubin Ultra chips, has been postponed to 2028 due to manufacturing challenges, SemiAnalysis reports.
NVIDIA postpones Kyber rack system (144 Rubin Ultra chips) to 2028 due to circuit board production constraints. The delay creates an opening for AMD and Google to compete for enterprise customers seeking GPU infrastructure alternatives.
Kyber system is designed to integrate multiple GPUs
Jul 06, 2026
09:43 am
What's the storyNVIDIA's highly anticipated Kyber rack-scale architecture, designed to house its Rubin Ultra AI chips, has been postponed by over a year to 2028.
The delay is primarily due to manufacturing challenges with a critical circuit board at the core of the system, as per SemiAnalysis.
Nvidia's Kyber AI rack is delayed to 2028
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Nvidia's Kyber rack for its 2027 Rubin Ultra chips has slipped to 2028 over a hard-to-build circuit board, SemiAnalysis says,…
Nvidia's Kyber NVL144 AI rack system is delayed to 2028 due to PCB manufacturing issues, with the NVL72x2 design canceled and…
The reported delay adds to concerns that Nvidia's breakneck annual release cadence is colliding with manufacturing limits.
Research firm SemiAnalysis claims 12 months delay is due to issues manufacturing the PCB midplane
Leaving Nvidia without a proven way to scale Rubin Ultra past its current Oberon rack.
Is Nvidia’s Kyber rack delayed, and what does it mean for the AI infrastructure market?
