The JBX01261 40GBASE-PSM4 QSFP+ transceiver represents advanced optical networking technology optimized for modern data centers and high-speed enterprise environments. This module delivers 40 gigabits per second of transmission capacity over standard singlemode fiber (9/125 micron core), enabling distances up to 10 kilometers with exceptional signal integrity. Key Technical Specifications: This transceiver operates at 1310nm wavelength, a standard telecommunications band that minimizes chromatic dispersion and optimizes performance over extended fiber distances. The QSFP+ form factor ensures compatibility with next-generation switching infrastructure while maintaining backward compatibility with legacy systems. MTP/MPO connectors provide parallel fiber connectivity, reducing installation complexity and improving bandwidth density compared to traditional single-fiber solutions. Compatibility and Integration: Direct compatibility with NVIDIA Mellanox MC2210511-PLR4 systems makes this module an ideal replacement for enterprise deployments. The transceiver is qualified to IEEE 802.3ba specifications and SFF-8436 standards, ensuring interoperability across diverse networking environments. Custom brand programming capabilities allow seamless integration into white-label and private-label infrastructure projects. Safety and Compliance: Comprehensive certifications including Class 1 Laser designation, TUV, UL, and FDA 21CFR 1040.10 compliance ensure safe operation in regulated environments. RoHS and ELV directives compliance demonstrates environmental responsibility and adherence to EU standards. Operating temperature range of 0-70°C accommodates both standard data centers and specialized deployment scenarios. Construction and Durability: The module features a robust metal case with integrated laser transmitter, providing protection against electromagnetic interference and environmental contaminants. Precision engineering ensures stable performance even in demanding conditions. Warranty and Support: Included 90-day limited warranty provides peace of mind for critical infrastructure deployments. Convenient shipping from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99.