The JBX05986 0.5m 200GBASE-CR4 QSFP56 Direct Attach Copper Cable represents enterprise-grade networking connectivity engineered specifically for NVIDIA Mellanox hardware platforms. This high-performance passive DAC (Direct Attach Copper) cable is the ideal solution for data center professionals seeking reliable, cost-effective interconnection solutions. Technical Excellence: This cable meets IEEE 802.3cd specifications and QSFP56 MSA/CMIS standards, ensuring seamless integration with compatible networking infrastructure. The 30AWG copper conductors provide optimal impedance matching and signal fidelity for 200GB data transmission. The 0.5-meter length is specifically optimized for short-range, high-density rack interconnections typical in modern data centers. Key Advantages: • Passive Technology: No external power consumption, reducing operational costs • Reliability: NVIDIA Mellanox validated design with proven performance • Compliance: Full RoHS/ELV compliance with UL and TUV safety certifications • Temperature Range: Operates reliably from 0-70°C (32-158°F) • Compatibility: Direct replacement for OEM part numbers 980-9I54A-00H00A, MCP1650-V00AE30, and related variants Ideal Applications: Data center operators, cloud infrastructure providers, and network administrators deploying NVIDIA Mellanox switches and network interface cards will benefit from this premium connectivity solution. Perfect for high-speed fabric interconnects, GPU cluster networking, and demanding HPC (High-Performance Computing) environments. Construction Quality: The cable features copper connectors with plastic jacketing, engineered for durability in professional environments. The 12x12x2mm form factor ensures compatibility with standard rack configurations while maintaining space efficiency. Warranty & Support: Backed by a comprehensive 90-day limited warranty. Shipped from convenient locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Custom brand programming options available for enterprise deployments. The JBX05986 delivers the performance, reliability, and value data center professionals demand for mission-critical networking applications.