The JBX01112 400GBASE-XDR4 QSFP-DD Transceiver represents cutting-edge optical networking technology for modern high-speed data centers and enterprise networks. This advanced module is fully compatible with Dell networking equipment (part numbers 407-BCHY, 407-BCIH, and 407-BDHM), ensuring seamless integration into existing infrastructure without complex reconfiguration. Key Technical Specifications: Operating at 400GB data rates, this transceiver utilizes 1310nm wavelength transmission over 9/125 micron singlemode fiber, achieving reliable connectivity up to 2km distances. The QSFP-DD form factor with MTP/MPO-12/APC connectors provides dense port configurations while maintaining superior signal integrity. The module is engineered with a metal case housing precision laser transmitter components. Compliance and Certification: This transceiver meets or exceeds IEEE 802.3bs and QSFP-DD MSA specifications, with full CMIS support for enhanced management capabilities. It carries Class 1 Laser certification, TUV approval, UL/FDA compliance (21CFR 1040.10), and RoHS/ELV directive compliance, ensuring safe operation in regulated environments. Performance Characteristics: With an operating temperature range of 0-70°C (32-158°F), this transceiver handles diverse deployment scenarios from climate-controlled data centers to temperature-variable environments. The robust construction and quality assurance deliver consistent performance throughout the 90-day limited warranty period. Customization and Support: Custom brand programming is available for organizations requiring OEM-specific configurations. Ships from strategically located warehouses in Danville, CA and Beaufort, SC with free standard shipping on orders exceeding $99. Applications: Ideally suited for metropolitan area networks, campus interconnects, and data center expansions requiring high-density 400GB connectivity with proven Dell ecosystem compatibility.