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effective cooling
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Pro Optix QSFP-40G-eSR4-O Transceiver Module renow-import-2026-04-16 effective coolingThe Pro Optix QSFP 40G eSR4 O is a 40G QSFP+ fiber optical transceiver, designed for high speed data communication over multimode fiber up to 300 meters, offering guaranteed compatibility with Cisco systems. The Pro Optix QSFP 40G eSR4 O is a high performance 40G QSFP+ (Enhanced Quad Small Form factor Pluggable) fiber optical transceiver. This module is specifically engineered to be fully equivalent to the Cisco original transceiver QSFP 40G eSR4,