Credo Technology's copper interconnects should do well after SemiAnalysis reported that Nvidia's Kyber NVL144 rack has been delayed by more than 12 months to 2028 and its NVL72x2 back-to-back architecture was cancelled, leaving Rubin Ultra with a limited scale-up domain. x.com 

Credo and a few DSP players stand to benefit from the shift @jukan05 describes away from co-packaged optics. Per @jukan05, the spec downgrade of NVIDIA's Rubin Ultra is bullish for the near-package optics supply chain and bearish for the CPO supply chain. x.com 

Credo looks exposed as networking becomes AI's next bottleneck and Nvidia locks down optical fiber for scale-up, scale-out and scale-across links. MicroLED is readily available and a good contender for scale-up and potentially scale-out, with many Asian suppliers pivoting into it. x.com  x.com 

Copper connectivity stays in Nvidia's racks longer than anyone modeled, a win for Amphenol and Credo. Per @SemiAnalysis_, the Kyber NVL144 rack is delayed more than 12 months to 2028 because its PCB midplane cannot be made at scale, and the NVL72x2 backup was cancelled. Co-packaged optics will not arrive until the Feynman generation, so the shift away from copper in scale-up moves out with it. x.com 

A rising value of compute per watt should benefit AI cloud, chip, connectivity and power suppliers. Elon Musk says that value will rise over time. Nebius has Microsoft and Meta deals; Marvell benefits from custom silicon demand; Credo connects GPUs; Vistra has long-term nuclear supply deals with Amazon and Meta; Nokia's Nvidia partnership could help it capture data-center networking growth. x.com  x.com 

Inference's move toward edge devices and dense, memory-hungry racks should drive demand for specialized chips, links, power delivery and cooling. McKinsey projects inference at 60% of AI computing demand by 2030. Ambarella makes on-device AI chips; Astera Labs links GPUs, memory and networks; Credo supplies short copper connections; Rambus earns from memory interfaces; Navitas reduces power waste; Modine cools dense racks; and Super Micro builds inference-specific server racks at volume. x.com  … Show more

Semtech benefits from Nvidia's strategy of scaling up with copper for as long as possible. At Computex 2026, Jensen Huang said to use copper wherever you can and optics only where you must. Nvidia's Blackwell NVL72 racks use thousands of copper cables rather than fiber to link GPUs within a rack, and keeping data intact over that copper relies heavily on signal-integrity chips from Semtech's active copper cable alliance. x.com 

POET Technologies and Sivers, as co-packaged optics pure plays, lose because CPO adoption has moved right by a full generation. SemiAnalysis reports Nvidia's flagship Kyber NVL144 rack is delayed over 12 months to 2028 and its NVL72x2 backup was cancelled, while optical scale-up won't arrive until Feynman. Packaging and interconnect hit physical walls in the same cycle, and the entire thesis for these names rests on CPO timing. x.com 

These ten companies span every layer of AI capex, which Goldman sees surging to $1.2 trillion in 2027, so each should make money. Credo, Broadcom, Micron, Nvidia, TSMC, AMD and Amkor cover connectivity, custom chips, memory, GPUs, foundry and packaging; Broadcom expects AI revenue of about $115B in fiscal 2027. Vistra supplies power under 20-year nuclear contracts. IREN and Nebius rent AI compute, with Nebius targeting $7-9B run-rate revenue by year end. x.com  x.com  x.com  x.com  x.com  x.com  x.com  … Show more

Co-packaged optics adoption is a matter of when, not if, so any further drop in optics stocks on NVIDIA's delay could be a great entry for those who missed the rally. SemiAnalysis reports NVIDIA's Kyber NVL144 rack has been delayed more than 12 months to 2028 and its NVL72x2 back-to-back architecture cancelled, leaving Rubin Ultra with a limited scale-up domain. x.com