The JBX05934 200GBASE-CR4 QSFP56 to 4x SFP56 breakout cable represents professional-grade networking infrastructure designed for modern data center environments. This 2.5-meter passive direct attach copper (DAC) cable delivers exceptional performance and cost efficiency for organizations requiring 200GB connectivity without the expense of active optical solutions. **Technical Specifications:** This breakout cable features a QSFP56 connector on one end and four individual SFP56 connectors on the other, enabling flexible network topology designs. The 26AWG twinax copper construction provides superior electrical characteristics, ensuring signal integrity across the entire 2.5-meter span. With IEEE 802.3cd qualification, this cable meets the most stringent industry standards for high-speed Ethernet transmission. **Performance & Reliability:** As a passive solution, the JBX05934 requires no external power or active electronics, reducing operational complexity and potential points of failure. This makes it ideal for installations where simplicity and reliability are paramount. The cable operates safely across a wide temperature range (0-70°C), making it suitable for diverse data center environments. **Cisco Compatibility:** This cable directly replaces Cisco OEM part number QSFP-4S50-CU3M, ensuring seamless integration with existing Cisco infrastructure. Its universal compatibility extends to other QSFP56-capable equipment meeting the same standards, providing flexibility in heterogeneous network environments. **Compliance & Certification:** Fully RoHS and ELV compliant, this cable meets EU directive 2002/95/EC environmental standards. TUV and UL safety certifications provide assurance of quality manufacturing and adherence to international safety protocols. These certifications are essential for enterprise deployments subject to regulatory requirements. **Applications:** Ideal for server interconnects, storage arrays, high-performance computing clusters, and enterprise data centers. The passive breakout design makes this particularly valuable for organizations transitioning from 100GB to 200GB infrastructure without complete equipment replacement. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty and available for custom branding, this cable provides excellent value for enterprise procurement teams. Ships from U.S. locations with free standard shipping on orders over $99, ensuring rapid deployment.