Juniper QSFP-100G-SR4-ET QSFP28 100G SR4 Transceiver | E-TEMP, 100GbE

Support 100 GbE short-reach connectivity in environments where thermal conditions can challenge standard optics. Juniper QSFP-100G-SR4-ET is a QSFP28 transceiver built for 100 Gigabit Ethernet over multimode fiber, with an extended-temperature design suited to demanding infrastructure spaces. The SR4 optical architecture uses parallel fiber signaling to deliver high-bandwidth links across short distances while preserving the compact footprint of the QSFP28 form factor. That makes it a strong fit for dense switching, aggregation, and interconnect layers where every rack unit and every port matters. Compared with lower-speed modules, this transceiver gives teams a cleaner path to 100 GbE without moving to a larger optics footprint. The extended-temperature rating adds practical value in edge rooms, industrial closets, and other environments where cooling is less controlled. For organizations standardizing on Juniper optics, it offers a direct way to keep short-reach 100 GbE links consistent, compact, and operationally predictable.