Cisco Compatible QSFP-40G-LR4-S - Functionally Identical 40GBASE-LR4 QSFP+ 1270/1290/1310/1330nm 10km DOM SMF Duplex LCEngineered for seamless integration in modern data centers, the Cisco Compatible QSFP 40G LR4 S is a functionally identical 40GBASE LR4 QSFP+ transceiver designed to deliver reliable, high performance uplinks across long distance links. This module is a drop in replacement that mirrors Ciscos own QSFP 40G LR4 S in form, fit, and function, enabling effortless migration from 10G to 40G without the risk of incompatibility. Each unit is programmed, tested
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