The JBX05038 represents a high-performance networking solution for organizations requiring reliable 400-gigabit connectivity. This 3-meter passive direct attach copper (DAC) breakout cable is engineered to connect 400GBASE-CR8 QSFP-DD ports to four independent QSFP56 ports, enabling flexible network architecture in modern data centers and high-performance computing environments. Key Technical Specifications: This cable utilizes 28AWG twinax copper construction, delivering superior electrical performance and signal integrity for demanding network applications. The passive design eliminates the need for active electronics, reducing power consumption and heat generation while maintaining cost-effectiveness. The cable operates reliably across a wide temperature range of 0°C to 70°C (32°F to 158°F), making it suitable for various deployment scenarios. Compliance and Certification: Fully qualified to ETC 400GBASE-CR8 specifications, this cable meets QSFP-DD MSA (Multi-Source Agreement) and CMIS (Common Management Interface Specification) standards. RoHS and ELV directive compliance ensures environmental responsibility, while TUV and UL safety certifications provide additional assurance of quality and safety. Compatibility and Applications: Designed as a direct replacement for Arista's CAB-D-4Q-400G-3M, the JBX05038 seamlessly integrates into existing Arista-based infrastructure. It's ideal for applications including data center interconnects, storage area networks (SANs), high-performance computing clusters, and enterprise network upgrades. The 3-meter length provides flexibility in equipment spacing while maintaining signal integrity. Value Proposition: With free standard shipping on orders exceeding $99 and a 90-day limited warranty, this cable offers enterprise-grade reliability at competitive pricing. Custom brand programming is available for organizations requiring OEM packaging or specifications. Maintenance and Care: As a passive cable, the JBX05038 requires minimal maintenance. Ensure proper cable management to prevent kinks or excessive strain. Store in a temperature-controlled environment between uses to preserve connector longevity and signal performance.