The JBX04982 represents the ideal solution for deploying 400GB Ethernet connectivity in enterprise data centers and high-performance computing environments. This 2.5m passive breakout cable transitions from a single QSFP-DD port to dual QSFP56 ports, enabling flexible network architecture configurations without requiring active breakout modules or power consumption. **Technical Excellence:** Manufactured to stringent 400GBASE-CR8 specifications, this cable leverages 26AWG twinax copper conductors to deliver maximum signal fidelity over short distances. The robust plastic jacketing protects against environmental stress while maintaining flexibility for routing through congested equipment racks. Operating temperature range of 0-70°C ensures reliable performance across seasonal variations and high-density installations. **Unmatched Compatibility:** Designed specifically for NVIDIA Mellanox ecosystems, this DAC cable directly replaces OEM part numbers 980-9IA3W-00W02A and MCP7H60-W02AR26. Full compliance with ETC 400GBASE-CR8, QSFP-DD MSA, and CMIS standards guarantees seamless integration with existing infrastructure without compatibility concerns. **Quality Assurance & Compliance:** Every cable undergoes rigorous testing to meet RoHS, TUV, and UL certifications, ensuring environmental responsibility and electrical safety. The 90-day limited warranty provides peace of mind for critical deployments. Manufactured in Vietnam and China using quality-controlled processes. **Cost-Effective Deployment:** By utilizing passive DAC technology, you eliminate active module expenses and power overhead while achieving lower latency. The 2.5m length accommodates typical rack-to-rack distances without signal degradation. **Ideal Applications:** Perfect for HPC clusters, cloud infrastructure, storage area networks, and high-frequency trading environments requiring maximum throughput with minimal latency. Ships free from dual warehouses (Danville, CA and Beaufort, SC) on orders exceeding $99, ensuring rapid delivery to your location.