Lightmatter delivers a 204.8 Tbps CPO switch and XPU scale‑up server with Flex, advancing high‑bandwidth data‑center interconnects for AI workloads
Executive summary: Lightmatter, together with Flex, validated an MHS‑based CPO switch and built an XPU scale‑up server using its Passage CPO and Guide DR, which were shown at the OCP Global Summit. The 204.8 Tbps CPO switch provides a significant boost in data‑center interconnect bandwidth, directly supporting the scaling needs of next‑generation AI and XPU workloads.
Who is involved: Lightmatter (technology provider), Flex (manufacturing partner), and unspecified industry partners that contributed to the OCP showcase.
Likely next (inference): Further volume production of the Passage CPO switch and integration into open rack designs, with potential follow‑on announcements from Lightmatter and Flex regarding customer deployments.
Lightmatter announced that it has produced a validation system for an MHS‑based CPO switch in collaboration with Flex and demonstrated an XPU demo system powered by its Passage CPO and Guide DR. The hardware was showcased at the OCP Global Summit as the first ORv3 and MHS‑based system featuring a next‑generation 204.8 Tbps CPO switch. The development underscores growing industry interest in co‑packaged optics to meet rising bandwidth demands of AI accelerators.
What's next — scenarios
Inference: scenarios and probabilities are Beyond's assessment, not reported fact.
Base case: CPO validation leads to early niche adoption (60%)
Lightmatter and Flex secure initial hyperscale pilots, but CPO remains a premium alternative for AI scale-up, driving modest near-term revenue while broader deployment waits for cost reductions.
- Announcement of a design win or pilot with a major cloud provider
- Successful completion of interoperability testing with leading AI accelerators
- Release of production timeline and volume capacity details
Upside: 204.8 Tbps becomes the standard for AI scale-up interconnects (25%)
Lightmatter's MHS-based CPO switch is adopted across hyperscale data centers, positioning the company as a critical infrastructure supplier and creating significant growth for Flex's manufacturing business.
- Multiple hyperscalers commit to MHS-based CPO in public roadmaps
- Large-scale volume orders (>10k units) announced within 6 months
- Ecosystem backing from major GPU/XPU vendors for Passage and Guide DR
Downside: Cost or technical hurdles delay commercialization; competitors catch up (15%)
Lightmatter loses first-mover advantage as established networking players ship alternative CPO solutions at lower cost, limiting market share and forcing a pivot to niche applications.
- Certification failures or thermal/reliability issues reported in field trials
- Cost per port remains 2-3x above electrical switches, stalling orders
- Broadcom or Marvell announces a competitive 204.8T+ CPO switch with earlier availability
What to watch
- OCP Summit session recordings and whitepapers from Lightmatter/Flex detailing real-world performance metrics (30 days)
- Any press release from a hyperscaler referencing Lightmatter or MHS-based CPO pilots (60-90 days)
- Flex earnings call commentary on CPO manufacturing readiness and customer demand (next quarterly report)
- Industry comparisons of power efficiency and cost per bit between Lightmatter and competing CPO prototypes (90 days)
- Updates on ORv3/MHS standards adoption in OCP working groups (60 days)
Timeline
- — Lightmatter Delivers Open Rack CPO Switch and XPU Scale-Up Server Through Independent Collaborations with Flex and Other Industry Partners (PR Newswire)
Analysis — what this means
Sectors affected
- data center interconnect
- photonic module supply chain
- AI accelerator hardware
Historical parallels
- Kulicke & Soffa Advances AI Infrastructure Through Co-Packaged Optics (CPO) and Advanced Packaging Leadership (Sept 1, 2026)
- E&R Engineering Spotlights High-Precision CPO at SEMI West 2026 (Oct 6, 2026)
Key entities
Sources
Related cases
- E&R Engineering's launch of high‑precision laser drilling and hybrid plasma solutions at SEMICON Taiwan 2026 signals a push to meet the rising demand for finer interconnects in advanced chip‑on‑package manufacturing
- Loftware’s CPO honored for supply‑chain leadership, underscoring industry focus on diversity and innovation