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同封光学CPO英伟达的下一个重要突破 --- Co-Packaged Optics CPO The Next Big Thing for Nvidia
2026-02-04 02:27
Summary of Co-Packaged Optics (CPO) for Nvidia Company and Industry - The focus is on Nvidia and its upcoming Co-Packaged Optics (CPO) technology, which is expected to revolutionize optical module integration in high-speed data communication systems [3][4][8]. Core Points and Arguments - **CPO Concept**: CPO integrates optical modules into compact optical engines, which are packaged with compute chips to reduce signal loss and improve performance as SerDes speeds increase [4][5]. - **Product Launch Timeline**: Nvidia plans to release its first CPO product, an Infiniband (IB) switch, in Q4 2024, with mass production of the CPO version starting in Q3 2025 [10][11]. - **Switch Specifications**: The Quantum 3400 X800 IB switch will feature 144 ports, each supporting 800G, and will be designed as a fully liquid-cooled system [14][15]. - **Internal Structure**: The switch will utilize four 28.8T switch chips, providing a total switching capacity of 115.2T, with a chiplet architecture that enhances integration density [18][20]. - **Multi-Plane Topology**: The architecture allows multiple independent switch planes to operate simultaneously, improving efficiency compared to traditional single-chip designs [21][23]. - **Optical Engine Integration**: The optical engines will be integrated with the switch chips, reducing physical space requirements and increasing the overall integration density [29][32]. Additional Important Content - **Component Suppliers**: Key components for the CPO switch will be supplied by various companies, including TSMC for packaging, Corning for MPO fibers and connectors, and Lumentum for laser chips [35][36]. - **Content Value Estimates**: The estimated content value for key components includes: - Switch chips: $12,000 for four 28.8T chips - FAUs: $3,600 for 72 units - Optical engines: $36,000 for 72 units - MPO connectors: $7,200 for 144 ports [36][38]. - **Market Misunderstanding**: There is a common misconception that Nvidia's first CPO product will be a CPO rack system, while it is actually an IB switch [8]. This summary encapsulates the key aspects of Nvidia's CPO technology and its implications for the industry, highlighting the innovative approach to optical integration and the anticipated product launch timeline.