This Juniper Networks® QSFP-1G-ER4L compatible QSFP28 transceiver provides 1GBase-ER4 throughput up to 4km w/host FEC over single-mode fiber (SMF) using a wavelength of 1295nm to 139nm via an LC connector. It is guaranteed to be 1% compatible with the equivalent Juniper Networks® transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely serialized and data-traffic and application tested to ensure that it will initialize and perform identically. Digital optical monitoring (DOM) support is also present to allow access to real-time operating parameters. This transceiver is Trade Agreements Act (TAA) compliant. https://elecena.pl/product/30654152/addon-networks-juniper-networks-qsfp-100g-er4l-compatible-taa 2026-09-03 https://elecena.pl/product/30654152/addon-networks-juniper-networks-qsfp-100g-er4l-compatible-taa 2026-09-27