The JBX05088 2.5-meter 400GBASE-CR8 QSFP-DD Direct Attach Copper Cable represents the optimal solution for organizations seeking reliable, high-speed connectivity without premium OEM pricing. As a fully compatible alternative to Cisco's QDD-400-CU2.5M, this passive DAC cable delivers identical performance specifications and feature sets. Technical Excellence and Compliance Built to exacting industry standards, this cable qualifies for ETC 400GBASE-CR8 specifications and adheres to QSFP-DD MSA (Multi-Source Agreement) and CMIS (Common Management Interface Specification) protocols. The 26AWG twinax copper conductor design minimizes signal attenuation while maximizing data integrity across the 2.5-meter span. Comprehensive safety certifications including RoHS, TUV, and UL compliance ensure this cable meets strict international regulatory requirements for both performance and environmental safety. Optimal Design for Data Center Deployment The passive DAC architecture eliminates power consumption and heat generation associated with active cables, reducing operational costs and environmental impact. QSFP-DD copper connectors provide secure, reliable connections with minimal insertion loss, critical for maintaining 400GB/s throughput in demanding data center fabrics. Operating reliably across 0-70°C temperature ranges, this cable performs consistently in diverse deployment scenarios from climate-controlled facilities to edge computing environments. Cost-Effective High-Performance Connectivity At a fraction of OEM pricing, the JBX05088 delivers enterprise-grade performance without unnecessary premium markups. Perfect for spine-leaf architectures, high-density switch interconnects, and server-to-storage applications, this DAC cable supports organizations scaling 400GBASE infrastructure efficiently. Features and Benefits: • 400GB/s full-duplex data transmission • 2.5-meter optimized length for typical rack-scale deployments • Passive design: zero power consumption • QSFP-DD to QSFP-DD copper connectors • RoHS, TUV, and UL certifications • 90-day limited warranty coverage • Free standard shipping on orders exceeding $99 • Manufactured in Vietnam and China with quality assurance Ideal for network engineers, data center managers, and IT departments modernizing infrastructure with 400G technology.