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flag The LPO MSA launches 400G-FR4-LPO spec for efficient, interoperable 400GbE over fiber, boosting AI data center performance.

flag The LPO MSA has released the 400G-FR4-LPO specification, enabling 400 Gigabit Ethernet over single-mode fiber using four 100 Gb/s wavelength-division multiplexed lanes with support for at least 500-meter transmission. flag Designed to reduce power, cost, and latency, the standard enhances data center performance for AI and machine learning, ensuring interoperability across switches, NICs, and modules. flag Developed by over 50 industry leaders and aligned with IEEE and OIF standards, it builds on the 100G-DR-LPO specification. flag The group is now advancing work on 200 Gb/s per lane implementations.

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