Support long-reach 100 GbE links with a QSFP28 transceiver designed for LR4 deployments. This compatible module is intended for single-mode fiber environments where backbone, aggregation, and inter-building connections need stable optical performance over longer distances than multimode optics can provide. The LR4 architecture is a practical choice for teams standardizing on 100 GbE across campus and data center transport layers. QSFP28 packaging preserves port density on modern switches while keeping cabling straightforward for high-speed uplinks. For infrastructure groups that need to extend 100 GbE without changing the switching layer, LR4 optics are often the right balance of reach and operational simplicity. This module is a fit for production networks that depend on consistent long-haul optical links between core switches, distribution layers, and remote equipment rooms. It helps keep high-bandwidth paths clean, scalable, and easier to plan than short-reach alternatives when distance is part of the design requirement.