Move 100 GbE traffic across distances that require more than standard short-reach optics. This ENET QSFP-100G-4WDM40 compatible module is designed for Juniper environments and built for long-reach 100G transport over single-mode fiber. The 4WDM40 design supports 40 km operation, making it a strong fit for inter-building links, metro aggregation, and backbone extensions where optical reach directly affects network design. For teams balancing performance and procurement requirements, TAA compliance matters. It helps this module fit into public sector and regulated purchasing workflows without forcing a compromise on link distance or speed. The QSFP28 form factor keeps it aligned with modern 100 GbE ports, while the compatible design supports straightforward deployment in Juniper-based infrastructure. This is the kind of optic chosen when the link is too important for guesswork. It is built for organizations that need dependable 100G transport, clear sourcing alignment, and the reach to keep fiber plans intact across larger facilities and distributed sites.