QSFP-100G-ER4L-S Cisco 100GBASE QSFP Transceiver, 40KM, SMF, Duplex LC

QSFP-100G-ER4L-S Cisco 100GBASE-ER4L QSFP Transceiver Module for SMF up to 40KM Long-Reach 100G QSFP Optical Transceiver for High-Density Networking Over Single-Mode Fiber The Cisco QSFP-100G-ER4L-S is a high-performance, hot-pluggable 100G QSFP28 optical transceiver designed for long-distance 100 Gigabit Ethernet applications. With support for transmission over single-mode fiber (SMF) up to 40 kilometers, it is an ideal choice for data center interconnect (DCI), metro backbone, enterprise WAN, and carrier-grade networks. Engineered for reliability and efficiency, this 100G transceiver delivers line-rate 100 Gbps performance using four CWDM lanes (1295.56–1309.14 nm) and features Digital Optical Monitoring (DOM) for real-time link diagnostics. Its low power consumption (<4.5W) and hot-swappable design make it highly efficient and easy to deploy in scalable, high-density environments. The QSFP-100G-ER4L-S is fully compliant with IEEE 802.3bm, IEEE 802.3ba, and MSA standards, ensurin