At GTC 2025, NVIDIA announced two new networking switch platforms – Spectrum-X Photonics and Quantum-X Photonics – based on co-packaged optics (CPO) technology. Spectrum-X, targeting Ethernet-based architectures, will be released in 2026 and offers configurations ranging from 128 ports at 800 Gb/s. OFC 2025 made one thing clear: The transition to Co-Packaged Optics (CPO) switches in data centres is inevitable, driven primarily by the power savings they offer. From Jensen Huang showcasing CPO switches at GTC 2025 to a wide range of vendors demonstrating optical engines integrated inside ASIC. Molex introduces integrated optical interconnect solutions and High-Radix Optical Circuit Switch Platform that simplify largescale AI networking by enabling modular, serviceable connectivity and dynamic, low-power optical reconfiguration. Co-packaged optics (CPO), by merging optics and electronics, brings about a revolution in data center design, significantly enhancing power efficiency and bandwidth density. As the demand for higher bandwidth data. ECTC progress report on enabling technologies, including cooling chiplets, 1µm hybrid bonding, RDL buildups, and co-packaged optics.
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