The JBX05914 3-meter 200GBASE-CR4 QSFP56 Direct Attach Copper cable represents a high-performance networking solution specifically designed for NVIDIA Mellanox-compatible systems. This passive breakout DAC cable delivers exceptional value for data centers, cloud computing environments, and enterprise networks requiring ultra-high-speed, low-latency connectivity. **Key Features & Specifications:** This premium cable features a robust 3-meter length with a direct QSFP56 to dual QSFP56 breakout configuration, supporting 200GB data transmission rates per IEEE 802.3cd standards. The 26AWG copper conductors provide superior electrical performance with minimal signal degradation, while the plastic jacket offers mechanical protection in high-density installations. **Compatibility & Performance:** Designed as a direct replacement for NVIDIA Mellanox part numbers MCP7H50-H003R26, 980-9I98J-00V003, and MCP7H50-V003R26, this cable integrates seamlessly into existing Mellanox environments. The passive breakout design eliminates external power requirements and reduces heat generation, making it ideal for power-constrained data center deployments. **Standards & Certifications:** Fully qualified to IEEE 802.3cd specifications and QSFP56 MSA compliance, this cable meets CMIS requirements for modern networking equipment. RoHS and EU directive 2002/95/EC compliance ensures environmental responsibility, while TUV and UL safety certifications guarantee reliable operation. **Operating Conditions:** With a broad operating temperature range of 0-70°C (32-158°F), this cable performs reliably in diverse environment conditions. The copper construction resists corrosion while maintaining long-term signal integrity. **Value Proposition:** Offering significant cost savings compared to active solutions, this passive DAC cable reduces total cost of ownership while delivering enterprise-grade performance. Free standard shipping on orders over $99, flexible deployment from multiple U.S. locations, and responsive customer support make this an excellent choice for networking professionals.