The JBX02411 25GBASE-ER SFP28 transceiver module represents a premium solution for organizations requiring high-capacity, long-distance optical connectivity. Engineered to IEEE 802.3by specifications, this 25Gbps transceiver extends network reach to 40 kilometers over single-mode fiber, making it ideal for campus interconnects, metropolitan area networks, and enterprise data center architectures. **Key Technical Features:** Operating at 1310nm wavelength with a 9/125 micrometer single-mode fiber core, this SFP28 module delivers consistent performance across extended distances. The duplex LC/UPC connector configuration ensures secure, low-loss connections while maintaining industry-standard compatibility. Built with precision metal case housing and advanced laser transmitter technology, the transceiver maintains Class 1 laser safety certification and UL/FDA compliance. **Performance & Compatibility:** As a fully compatible replacement for HPE's JL486A-ER module, the JBX02411 integrates seamlessly into existing HPE infrastructure without requiring firmware updates or reconfiguration. The module supports custom brand programming, allowing organizations to maintain their proprietary naming conventions across network equipment. **Environmental & Safety Standards:** Compliant with EU Directive 2002/95/EC (RoHS) and ELV requirements, this transceiver meets the highest environmental standards. Operating temperature range of 0-70°C (32-158°F) accommodates diverse deployment scenarios from climate-controlled data centers to outdoor telecommunications cabinets. **Reliability & Support:** Each unit includes a 90-day limited warranty and comes with comprehensive technical documentation referencing SFF-8402 and SFF-8472 standards. The 5x4x2mm compact form factor ensures efficient rack space utilization while maintaining superior thermal management. **Shipping & Availability:** Qualifying orders receive free standard shipping from strategically located distribution centers in Danville, CA and Beaufort, SC, ensuring rapid delivery to organizations nationwide. Perfect for network upgrades, equipment replacement, and large-scale infrastructure deployments.