The Huawei 02311YXR (QSFP-100G-ER4-Lite) is a high-performance 100G QSFP28 optical transceiver designed for long-distance data transmission over single-mode fiber. Supporting up to 40 km reach with FEC, it operates across 1295 to 1309 nm wavelengths using LAN-WDM technology and features dual LC connectors, making it ideal for data center and enterprise network applications.