The JBX05047 1.5-meter 400GBASE-CR8 QSFP-DD to 4x QSFP56 direct attach copper breakout cable represents an excellent solution for organizations seeking reliable, cost-effective high-speed network interconnectivity. This passive breakout DAC is engineered specifically for data center environments requiring 400Gbps connectivity with the flexibility of four separate 100G connections. **Technical Excellence:** Built with premium 30AWG twinax copper conductors and protective plastic jacketing, this cable ensures minimal signal loss and electromagnetic interference over its 1.5-meter length. The QSFP-DD form factor on one end breaks out to four QSFP56 connectors, providing unparalleled flexibility in network architecture. Operating reliably across temperatures from 0°C to 70°C, the cable maintains consistent performance in demanding data center conditions. **Compliance & Certification:** Fully compliant with 400GBASE-CR8 and QSFP-DD MSA standards, this cable holds RoHS, TUV, and UL certifications. It adheres to EU directive 2002/95/EC requirements, making it suitable for global deployment across regulated environments. **Arista Compatibility:** As a direct replacement for Arista's CAB-D-4Q-400G-1.5M, this cable integrates seamlessly with existing Arista infrastructure, simplifying procurement and reducing compatibility concerns. **Ideal Applications:** Perfect for data center switch uplinks, server interconnects, and storage area networks requiring 400G connectivity with flexibility. The passive design eliminates power consumption, reducing operational costs while maintaining superior performance. **Warranty & Support:** Backed by a 90-day limited warranty and available for custom brand programming, this cable offers excellent value. Free standard shipping on orders exceeding $99 makes procurement economical and convenient.