The Lumentum R300 Optical Circuit Switch (OCS) is a 300×300 optical switch optimized for AI/ML data center applications and spine switch replacement. It enables high-capacity, low-power, scalable interconnects between GPUs, servers, and switches, dramatically reducing network power consumption while providing high reliability, fast switching, and excellent optical performance based on proven MEMS technology.  With a 300×300 port configuration, industry-leading low insertion loss, high return loss for superior signal integrity, and up to 5–10x lower power usage compared to traditional electrical switching, it enables larger, more efficient, and more sustainable AI clusters.

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