Description
The Juniper QFX-QSFP-40G-ESR is a high-performance 40 Gigabit Ethernet transceiver module designed for data center and enterprise network environments requiring extended reach. Housed in a QSFP+ form factor, this module supports transmission distances of up to 300 meters over OM3 multimode fiber using MPO/MTP connectors. It delivers reliable and efficient connectivity for high-bandwidth applications, making it a practical solution for scaling network infrastructure. The compact design ensures compatibility with Juniper QFX Series switches and other QSFP+ ports.
Engineered for durability and consistent performance, the QFX-QSFP-40G-ESR operates at a wavelength of 850nm and supports digital diagnostics monitoring (DDM) for real-time status updates. The module is hot-swappable, allowing for seamless upgrades or replacements without service disruption. When purchasing used or refurbished units, buyers benefit from a cost-effective way to expand network capacity while maintaining compatibility with existing hardware. Each unit typically includes the optical transceiver and protective dust caps, with condition and warranty varying by vendor.

