Move 100 GbE traffic farther without changing the density profile of your switching platform. This QSFP28 LR4 transceiver is built for long-reach single-mode fiber deployments where backbone links, aggregation paths, and inter-building connections need stable optical performance. The LR4 design is a strong fit for infrastructure teams that want to preserve front-panel space while extending Ethernet reach beyond short-reach multimode optics. Its QSFP28 form factor supports compact, high-port-count hardware, and the 100 GbE signaling rate aligns with modern core and aggregation architectures. For organizations that must meet sourcing requirements, the TAA-compliant profile adds procurement confidence for public sector and regulated enterprise environments. This makes the module a practical choice when the network design demands both technical fit and purchasing discipline. It is the kind of optic selected when uptime, reach, and compliance all matter at once.