Cisco QSFP-40G-CSR-S= QSFP-40G-CSR-S= network transceiver module Fiber optic

The QSFP-4G-CSR-S is a pluggable optical transceiver with a duplex LC connector interface used for connectivity using MultiMode Fiber (MMF). The Cisco 4GBASE-CSR Modules support link lengths of 3 meters and 4 meters, respectively, on laser-optimized OM3 and OM4 multimode fibers. Customers benefit through the reuse of their existing 1 gigabit duplex MMF infrastructure as they migrate to 4 Gigabit Ethernet, while maintaining the same supported link distances as 1G Ethernet. Each QSFP-4G-CSR-S operates at four different wavelengths. Each of the four wavelengths operates at 1G over existing duplex multimode fiber using standard LC connectors. The Cisco QSFP-4G-CSR-S transceiver does not support FCoE.