The JBX05917 200GBASE-CR4 QSFP56 Direct Attach Copper Cable represents an essential component for modern high-speed data center and enterprise networking infrastructure. This premium 5-meter cable directly replaces the OEM part number MCA7J50-H005R and is fully compatible with NVIDIA Mellanox networking equipment, ensuring reliable performance in demanding environments. Key Features and Specifications: This cable utilizes 28AWG twinax copper conductors with protective plastic jacketing, engineered to support 200GB data rates without signal degradation. The QSFP56 to QSFP56 configuration with active breakout capability enables flexible deployment options across various network topologies. Manufactured in Vietnam and China with strict quality control, each cable meets IEEE 802.3cd and QSFP56 MSA specifications. Compliance and Certifications: Fully RoHS and ELV compliant, meeting EU directive 2002/95/EC requirements. Safety certifications include TUV and UL approval, ensuring workplace safety and equipment reliability. The cable's 90-day limited warranty protects your investment. Performance and Applications: Operating across a temperature range of 0-70°C (32-158°F), this DAC cable performs consistently in both standard and hot data center environments. Ideal applications include cloud infrastructure, HPC clusters, storage networks, and enterprise switch interconnections. The 5-meter length provides flexibility for rack-to-rack and equipment-to-equipment connectivity without requiring active signal repeaters or optical conversion. Value Proposition: Direct attach copper technology eliminates the complexity and cost associated with optical transceivers while maintaining exceptional speed and reliability. With free standard shipping on orders exceeding $99 and rapid fulfillment from US distribution centers, this cable offers both cost savings and convenience for procurement teams. Designed for IT professionals, network engineers, and data center managers requiring certified, high-performance interconnect solutions.