The JBX01455 is a premium 100GBASE-LR4 QSFP28 optical transceiver module specifically designed for high-performance network environments requiring maximum throughput over substantial distances. This advanced transceiver delivers 100 Gigabit Ethernet speeds across 10 kilometers of single-mode fiber (SMF), providing the ideal solution for data center interconnects, campus backbone networks, and metropolitan area network (MAN) applications. **Key Technical Specifications:** Operating at 100 Gbps data rates, the JBX01455 utilizes duplex LC/UPC fiber connectors and operates over 9/125 micrometer singlemode fiber infrastructure. The QSFP28 form factor provides space-efficient deployment in high-density network environments. Full compliance with IEEE 802.3bm standard and QSFP28 MSA ensures interoperability with industry-leading networking equipment. **Superior Build Quality & Safety:** Constructed with a robust metal housing and integrated laser transmitter assembly, this transceiver withstands demanding datacenter environments. Operating temperature range of 0-70°C accommodates diverse deployment scenarios. Comprehensive safety certifications include Class 1 Laser designation, RoHS/ELV compliance, TUV, UL certification, and FDA 21CFR 1040.10 compliance, ensuring regulatory adherence across global markets. **Extreme Networks Compatibility:** Certified compatible with Extreme Networks equipment including the 100G-LR4-QSFP10KM module, enabling seamless network upgrades and expansions. Custom brand programming is available for OEM integration projects. Direct replacement for original part numbers 100G-LR4-QSFP10KM, 10403, and 100G-QSFP28-LR4-10KM. **Performance & Reliability:** This module represents the pinnacle of 100G transmission technology, balancing power efficiency with exceptional signal integrity over extended distances. The 10km reach over singlemode fiber eliminates costly infrastructure upgrades while maintaining carrier-grade reliability. **Shipping & Support:** Available from multiple U.S. warehouses (Danville, CA and Beaufort, SC) with free standard shipping on qualifying orders. Backed by a 90-day limited warranty providing peace of mind for critical network investments. Manufacturing certifications from Vietnam and China ensure consistent quality standards.