The JBX01115 400GBASE-XDR4 QSFP-DD transceiver represents cutting-edge optical networking technology engineered for organizations requiring ultra-high-speed data transmission. This 400GB module is specifically designed to meet the demands of modern data centers, enterprise networks, and service provider infrastructure seeking reliable, long-distance connectivity. Key Technical Specifications: This transceiver operates at 1310nm wavelength, providing 2-kilometer reach over standard single-mode fiber (9/125 micron). The QSFP-DD form factor houses advanced 400GBASE-XDR4 technology, delivering exceptional performance while maintaining compatibility with existing network architectures. The precision laser transmitter and metal case construction ensure durability and signal integrity across extended transmission distances. Connectivity & Compatibility: Equipped with industry-standard MTP/MPO connectors, the JBX01115 integrates seamlessly into modern fiber optic systems. As a direct replacement for Juniper QDD-4X100G-FR modules, it provides plug-and-play compatibility with existing Juniper infrastructure without requiring reconfiguration or downtime. Compliance & Certification: Fully certified to IEEE 802.3bs and QSFP-DD MSA standards, this module adheres to stringent industry specifications. It carries Class 1 laser certification, FDA compliance (21CFR 1040.10), TUV and UL certifications, and meets RoHS/ELV requirements for environmental responsibility. Operational Reliability: Designed for stable performance across 0-70°C operating temperatures, this transceiver maintains consistent signal quality in varied environmental conditions. The 90-day limited warranty and custom brand programming options provide additional flexibility and protection for your investment. Applications: Ideal for: High-speed data center interconnects, campus backbone networks, long-distance metropolitan area networks (MANs), service provider deployments, and enterprise network upgrades requiring 400GB capacity with proven Juniper compatibility. With free standard shipping on orders exceeding $99, sourced from convenient US locations, the JBX01115 offers exceptional value for mission-critical networking requirements.