Juniper QFX-QSFP-40G-SR4 QSFP+ 40GE SR4 Transceiver | 40G, SR4, Enterprise

Maintain high-density 40 GbE connectivity across short-reach multimode links with the Juniper QFX-QSFP-40G-SR4 transceiver. Designed for switching environments, this QSFP+ module supports SR4 optics for structured, short-distance interconnects between compatible network devices. It is a practical fit for leaf-spine fabrics, top-of-rack switching, and aggregation layers where predictable optical performance matters more than long-haul reach. SR4 architecture is well suited to data center builds that prioritize port density and efficient cabling. By using multimode fiber and a QSFP+ form factor, this module helps keep switch deployments compact while preserving the throughput expected from 40 GbE infrastructure. For teams standardizing on Juniper switching platforms, it provides a clean path to expand bandwidth without moving to a larger optics footprint. Choose this module when you need short-reach 40 GbE links that are easy to deploy, easy to service, and aligned to enterprise switching requirements. It is a focused transceiver for environments where every port, patch panel, and rack unit has to earn its place.