The JBX05973 3m Cisco QSFP56 200GBASE-CR4 direct attach copper cable represents a cutting-edge solution for modern data center interconnectivity. As a passive DAC (Direct Attach Copper) cable, it eliminates the need for active signal regeneration, resulting in lower operational costs, reduced power consumption, and minimal latency—critical factors for high-frequency trading environments, cloud infrastructure, and enterprise data center deployments. Technical Excellence and Compliance This cable is fully qualified to IEEE 802.3cd specifications and compliant with the QSFP56 Module-level Management Interface Specification (CMIS). The 26AWG twinax copper construction ensures optimal signal integrity for 200GBASE-CR4 transmission, while the plastic jacketing provides mechanical protection and flexibility for dense cabling environments. All components meet RoHS and ELV directives, with additional TUV and UL safety certifications validating its manufacturing quality. Cisco Compatibility and OEM Replacement Direct replacement for Cisco's QSFP-200-CU3M part number, this cable integrates seamlessly with Cisco switching equipment and other standards-compliant platforms. Whether upgrading existing infrastructure or deploying new 200Gbps networks, compatibility is guaranteed without vendor lock-in concerns. Durable Construction and Performance Operating reliably between 0-70°C (32-158°F), the cable performs consistently across various data center thermal conditions. The 3-meter length provides optimal reach for leaf-spine architectures and top-of-rack switch configurations without excessive slack or tension issues common in longer runs. Value Proposition and Support Come with a 90-day limited warranty and shipped with free standard shipping on orders exceeding $99. Custom brand programming is available for enterprises requiring proprietary labeling. Whether replacing damaged cables or scaling network capacity, this passive DAC solution delivers enterprise performance at competitive pricing. Applications include high-speed fabric networks, data center interconnects, GPU clusters, and HPC (High-Performance Computing) environments where 200Gbps throughput is essential.