CPO packages silicon photonics devices with ASICs, and is about to replace traditional pluggable optical modules, improving energy efficiency by 3. 5 times and deployment speed by 1. While the industry-standard OSFP (Octal Small Form-Factor Pluggable) module has successfully enabled 400Gbps, 800Gbps, and 1. Quantum-X and Spectrum-X switches reduce dependence on traditional optical. Co-Packaged Optics (CPO) is an advanced optical interconnect architecture that integrates optical components—such as photonic integrated circuits (PICs) and lasers—directly alongside switching ASICs or processors within the same package. This approach significantly reduces electrical I/O distance. Are pluggable optics dead or alive for the AI era? Are pluggables relevant in the AI era? Majority of the switch ports in AI back-end Networks to be 800 Gbps in 2025 and 1600 Gbps in 2027, showing a very fast migration to the highest speeds available in the market. In this transformation, the network is no longer just a data transport layer—it has become a critical factor in determining overall training efficiency.
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