This high-performance QSFP28 optical transceiver delivers reliable 100-Gigabit Ethernet connectivity over long distances. Specifically programmed for Calix network platforms, it offers seamless plug-and-play compatibility with Calix 100-04744 hardware. The module employs LAN-WDM technology, transmitting four 25Gbps channels through a single fiber pair for an aggregate bandwidth of 103.1 Gbps. Operating at wavelengths of 1295nm, 1300nm, 1304nm, and 1309nm, it supports transmission distances up to 6.2 miles over single-mode fiber. The hot-swappable QSFP28 form factor features a duplex LC connector and Digital Optical Monitoring (DOM) support for performance tracking. Designed for commercial temperature ranges from 32°F to 158°F, this TAA Compliant transceiver is manufactured in the USA or UK, making it suitable for government and military network deployments. The module combines robust engineering with reliable performance for demanding high-speed network applications.