Keep 100 GbE traffic moving across longer spans without changing the network design. The Axiom QSFP-100G-LR-S-AX is a Cisco-compatible QSFP28 transceiver for 100GBASE-LR deployments, built for single-mode fiber and LC duplex connectivity. With 1310 nm optics and support for links up to 10 km, it fits the kind of backbone and interconnect paths where reach, signal integrity, and predictable performance matter. This module is a practical choice for teams standardizing on 100 GbE while preserving compatibility with Cisco environments. It is well suited to aggregation uplinks, campus backbones, and data center interconnects where multimode optics would fall short. The LR profile gives you the distance headroom to place equipment where it belongs, not where the fiber forces it. For procurement teams, the value is straightforward: a compatible optic that supports long-reach transport without overbuying capacity or compromising on link design. For network engineers, it means a familiar QSFP28 form factor, single-mode operation, and the reach needed for production-grade infrastructure.