The JBX05040 QSFP-DD to QSFP56 breakout cable represents the ideal solution for organizations requiring high-density, cost-effective 400GB connectivity. This 3-meter passive direct attach copper (DAC) cable seamlessly integrates into Dell infrastructure, specifically designed as a drop-in replacement for OEM part numbers 470-AFPF and 470-AFPH. **Technical Specifications & Performance:** Manufactured with precision 28AWG copper conductors, this cable supports full 400GBASE-CR8 bandwidth without active components or external power requirements. The design allows simultaneous transmission across four QSFP56 ports, providing flexible breakout capability for diverse network architectures. Fully qualified to ETC 400GBASE-CR8 specifications and QSFP-DD MSA standards, it guarantees compatibility and performance consistency. **Quality & Compliance:** Rigorous testing and certification ensure reliability. The cable meets RoHS directive 2002/95/EC and ELV requirements, with TUV and UL safety certifications. Its durable plastic jacketing protects copper conductors from environmental stress while maintaining optimal signal integrity across the 3-meter span. **Operational Capabilities:** Designed for data center and enterprise environments, the cable operates reliably within 0-70°C temperature ranges, accommodating diverse deployment conditions. The passive architecture eliminates latency and power consumption concerns common with active solutions. **Installation & Support:** User-friendly connector design ensures straightforward installation in dense server environments. The 90-day limited warranty provides confidence in your investment. Custom brand programming is available for organizations requiring OEM labeling. **Ideal Use Cases:** Perfect for high-speed inter-switch connections, server-to-fabric configurations, and storage array implementations requiring 400GB connectivity. Organizations modernizing data centers benefit from cost savings versus active equipment while maintaining enterprise-grade performance and reliability.