Keep high-speed backbone links stable over distance with the Ubiquiti UACC-OM-QSFP28-LR4. This QSFP28 optical module is designed for 100 Gigabit Ethernet deployments that need single-mode reach without compromising link quality. With duplex LC UPC connectivity and support for OS2 fiber, it is well suited for long-haul uplinks between switches, aggregation layers, and remote network rooms. At 100 Gbps, this module gives teams the bandwidth needed for storage traffic, virtualization clusters, and dense east-west workloads. Its LR4 design supports links up to 10 km, making it a practical choice for campus interconnects and distributed infrastructure where multimode optics fall short. The compact form factor simplifies deployment in QSFP28-capable hardware, while compatibility with QSFP28 and QSFP+ interfaces helps streamline standardization across mixed environments. For buyers comparing optics at this tier, the value is in reach, consistency, and fit. This module is built for environments where a short-reach transceiver would force architectural compromises. It helps preserve port density, reduce design complexity, and maintain a clean optical path over single-mode fiber. For enterprise teams planning long-distance 100 GbE links, it is a focused component that earns its place in the network.