The JBX05352 1.5m Cisco-compatible 40GBASE-CR4 QSFP+ passive direct attach copper cable represents an economical yet robust solution for enterprise-level 40 gigabit network infrastructure. Designed specifically for data centers, server farms, and high-performance computing environments, this passive DAC cable delivers exceptional value without compromising on quality or performance. Construction and Materials: The cable features premium 30AWG twinax copper conductors encased in durable plastic jacketing, providing excellent shielding against electromagnetic interference while maintaining flexibility for installation in tight spaces. The copper construction ensures superior conductivity and signal integrity across the full 1.5-meter length, critical for maintaining 40GB data rates without signal degradation. Technical Specifications: Fully qualified to IEEE 802.3ba and SFF-8436 standards, this cable meets the highest industry specifications for 40GBASE-CR4 connectivity. With QSFP+ to QSFP+ copper connectors and a data rate of 40GB, it delivers the performance required for modern network infrastructure. The passive design eliminates power requirements, reducing operational costs and complexity compared to active optical cables. Compatibility and Performance: Direct compatibility with Cisco networking equipment (replaces OEM P/N QSFP-H40G-CU1-5M and MA-CBL-40G-150CM) ensures seamless integration into existing infrastructure. The 1.5m length provides optimal flexibility for data center rack configurations, server-to-switch connections, and equipment interconnects. Operating within 0-70°C temperature parameters, the cable performs reliably in diverse deployment scenarios. Compliance and Safety: Full RoHS and EU directive 2002/95/EC compliance ensures environmental responsibility and regulatory adherence. Rigorous safety certifications from TUV and UL validate quality and reliability standards. The cable is custom brand programming available for enterprise deployments requiring branded solutions. Warranty and Support: Backed by a 90-day limited warranty, this cable provides peace of mind for mission-critical applications. Free standard shipping on orders over $99 makes it an economical choice for bulk infrastructure upgrades. Ships from strategic US locations (Danville, CA and Beaufort, SC) for rapid deployment. Applications: Ideal for data center interconnects, high-speed server clusters, storage area networks (SANs), and enterprise network upgrades requiring reliable 40GB connectivity. Perfect for organizations seeking cost-effective alternatives to active cables without sacrificing performance.