The JBX01258 40GBASE-PSM4 QSFP+ Transceiver represents a cost-effective, high-performance solution for organizations requiring 40 gigabit per second optical networking capabilities. This PSM4 (Parallel Single-Mode 4-lane) transceiver is engineered to deliver reliable signal transmission across 10-kilometer distances using singlemode fiber infrastructure, making it ideal for campus interconnects, data center backbone networks, and metropolitan area networks. Technical Specifications: This transceiver operates at 40GBASE-PSM4 specifications with full compliance to IEEE 802.3ba standards and SFF-8436 form factor requirements. The 1310nm wavelength design optimizes performance over 9/125 micron singlemode fiber, delivering consistent signal integrity across extended distances. The QSFP+ form factor allows for high-density port configurations, enabling maximum throughput in space-constrained environments. Connectivity & Compatibility: Featuring MTP/MPO connectors, the JBX01258 provides seamless integration with existing backbone cabling infrastructure. It serves as a direct replacement for the Extreme Networks 40G-QSFP-LR4-INT module (part number 10326), ensuring compatibility with established network equipment and eliminating costly infrastructure modifications. Quality & Compliance: Manufactured with precision metal housing and advanced laser transmission technology, this transceiver meets stringent safety standards including Class 1 Laser certification, UL, FDA (21CFR 1040.10), and TUV approvals. Full RoHS and ELV directive compliance ensures environmental responsibility while maintaining performance reliability. The module operates safely across the 0-70°C temperature range, suitable for both climate-controlled data centers and industrial environments. Value & Support: With custom brand programming available, organizations can maintain brand consistency across their optical infrastructure. The 90-day limited warranty provides peace of mind, while free standard shipping on orders over $99 reduces acquisition costs. Ships from strategically located U.S. facilities (Danville, CA and Beaufort, SC) for rapid deployment. Applications: Ideal for service providers, enterprise IT departments, and network integrators building or expanding 40G optical networks. Particularly suited for applications requiring reliable long-distance connectivity without the expense of ultra-long-range modules.