The JBX05025 400G QSFP-DD Direct Attach Copper Cable represents a critical connectivity solution for modern data center infrastructure. As data demands accelerate, organizations require robust, high-performance cabling that delivers reliable 400GBASE-CR8 connectivity without compromise. Technical Specifications: This 2.5-meter passive DAC cable features QSFP-DD to 4x QSFP56 configuration, enabling efficient breakout functionality for complex network topologies. The 28AWG twinax copper construction ensures superior signal integrity and minimal attenuation, critical for maintaining 400GB data rates over the full 2.5-meter span. Copper connectors with plastic jacketing provide durability while maintaining compliance with international standards. Compliance & Certification: Fully qualified to IEEE ETC 400GBASE-CR8 specifications and QSFP-DD MSA/CMIS standards. RoHS and EU Directive 2002/95/EC compliant, with TUV and UL safety certifications. Manufactured in Vietnam and China with stringent quality control. Compatibility & Applications: Designed as a direct replacement for Arista CAB-D-4Q-400G-2.5M, this cable integrates seamlessly with Arista switching infrastructure and other 400GBASE-CR8 compatible systems. Ideal applications include: • Enterprise data center core and spine architecture • High-performance computing cluster interconnects • Cloud service provider infrastructure • Network function virtualization (NFV) deployments • Storage area network (SAN) high-speed connections Advantages: Passive design eliminates power consumption and heat generation, improving overall system efficiency. Direct attach copper technology provides lower latency compared to active solutions, essential for latency-sensitive applications. The 2.5-meter length balances reach with signal quality, avoiding the signal degradation associated with longer copper runs while providing flexibility for cabinet-level and adjacent-cabinet deployments. Quality & Support: Each cable undergoes rigorous testing to ensure compliance with 400GBASE-CR8 specifications. Backed by a 90-day limited warranty and supported by expert technical staff. Custom brand programming available for OEM and enterprise customers. Free standard shipping on orders over $99, with fulfillment from strategic US locations (Danville, CA and Beaufort, SC) ensuring rapid delivery. Maintenance Note: Store in a cool, dry environment with operating temperatures between 0-70°C. Avoid excessive bending near connectors and keep connectors clean and dust-free for optimal performance and longevity.