The JBX05373 40GBASE-CR4 QSFP+ passive direct attach copper cable represents a critical connectivity component for modern data center and enterprise networking environments. This 1-meter cable is specifically engineered for Arista-compatible network switches and equipment, providing reliable 40Gbps Ethernet connectivity with proven performance and industry-standard compliance. Technical Specifications: The cable features QSFP+ connectors on both ends, supporting the 40GBASE-CR4 standard for high-speed data transmission over short distances. The 30AWG twinax copper construction provides excellent electrical characteristics while maintaining flexibility for installation in confined spaces. Operating across a temperature range of 0-70°C (32-158°F), the cable performs reliably in diverse data center environments. Compliance & Certification: This cable meets stringent industry standards including IEEE 802.3ba and SFF-8436 specifications, ensuring interoperability with Arista equipment. Full RoHS, TUV, and UL certification confirms adherence to environmental and safety directives, including EU directive 2002/95/EC (RoHS). The cable's manufacturing in Vietnam and China follows rigorous quality control protocols. Key Advantages: Passive DAC technology eliminates active components, reducing power consumption and heat generation compared to active solutions. The direct attach design minimizes latency, ideal for high-frequency trading, cloud computing, and storage area networks (SANs). At 1 meter, this cable length perfectly suits equipment-to-equipment connections within rack or adjacent rack configurations. Compatibility & Applications: The JBX05373 is a direct replacement for Arista part number CAB-Q-Q-1M, ensuring seamless integration into existing network infrastructure. Common applications include data center switch interconnects, server-to-switch connections, and network appliance deployments. The cable's reliability makes it suitable for mission-critical environments. Product Support: Enjoy free standard shipping on orders over $99, with fulfillment from Danville, CA or Beaufort, SC locations. Custom brand programming is available for volume orders. All units include a 90-day limited warranty, providing confidence in your investment. Choose the JBX05373 for cost-effective, standards-compliant connectivity that meets enterprise-grade performance demands without premium active cable pricing.