The JBX05936 200GBASE-CR4 QSFP56 to 4x SFP56 Direct Attach Copper cable represents a critical component for modern high-speed data center networking. This 2.5-meter breakout cable delivers exceptional performance while providing the flexibility required in contemporary network architectures. **Technical Specifications:** This passive DAC cable features 26AWG twinax copper conductors with professional-grade plastic jacketing, engineered to deliver 200GB/s data rates per IEEE 802.3cd specifications. The QSFP56 MSA and CMIS-compliant design ensures seamless integration with existing NVIDIA Mellanox infrastructure. Operating reliably across temperatures from 0 to 70°C (32 to 158°F), the cable maintains performance consistency in both controlled data center environments and warm deployments. **Compatibility and Integration:** Direct replacement for OEM part number 980-9I431-00V02A and MCP7H70-V02AR26, this cable integrates seamlessly into existing Mellanox environments. The breakout configuration enables IT teams to segment high-speed QSFP56 connections into multiple SFP56 ports, supporting flexible network topology adjustments without hardware replacement. **Quality Assurance:** Manufactured to stringent compliance standards including RoHS, TUV, and UL certifications, this cable meets EU directive 2002/95/EC requirements. The robust construction withstands demanding data center conditions while maintaining signal integrity across the full 2.5-meter length. **Business Value:** As a passive solution, this DAC cable eliminates power consumption concerns associated with active alternatives, reducing operational costs while maintaining reliability. The 90-day limited warranty provides peace of mind, while free standard shipping on orders exceeding $99 makes network upgrades more accessible. **Applications:** Ideal for enterprise data centers, high-performance computing clusters, financial trading systems, and any environment requiring reliable high-speed connectivity. Network architects leverage these breakout cables to optimize port density and network flexibility while maintaining superior signal quality. **Conclusion:** The JBX05936 combines professional-grade specifications with cost-effective passive DAC technology, making it the preferred choice for organizations standardizing on NVIDIA Mellanox infrastructure while seeking reliable, certified networking solutions.