The JBX05302 5-meter 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a cost-effective and reliable solution for enterprise-grade data center networking. As a passive DAC cable, it provides direct copper connectivity between QSFP+ ports without requiring active signal regeneration, resulting in lower power consumption, reduced heat generation, and minimal latency—critical factors in modern data center operations. **Technical Excellence:** Built to IEEE 802.3ba and SFF-8436 standards, this cable delivers consistent 40GB performance across its 5-meter reach. The 28AWG twinax construction provides optimal signal integrity while maintaining flexibility for installation in tight spaces. Manufactured in Vietnam and China using rigorous quality control processes, each cable undergoes compliance verification for RoHS, TUV, and UL certifications, ensuring it meets stringent international safety and environmental standards per EU Directive 2002/95/EC. **Extreme Networks Compatibility:** Specifically engineered for Extreme Networks equipment, this cable is a drop-in replacement for original part numbers including 40G-DACP-QSFP5M, AA1404032-E6, 40GB-C05-QSFP, and 10323. It supports seamless integration into existing infrastructure without requiring firmware updates or reconfiguration. **Performance Advantages:** Unlike active optical cables (AOCs), this passive copper DAC eliminates expensive active components, reducing total cost of ownership while maintaining superior performance. The copper construction ensures reliable signal transmission with minimal electromagnetic interference, making it ideal for densely packed rack environments. **Versatile Applications:** Perfect for connecting high-speed switches, routers, servers, and storage systems in data centers, enterprise networks, and service provider environments. The 5-meter length accommodates most standard rack-to-rack and switch-to-server configurations. **Compliance & Durability:** Qualified for operating temperatures from 0-70°C, this cable performs reliably in various environmental conditions. Its plastic jacketing provides protection against physical damage and environmental contaminants. Backed by a 90-day limited warranty and custom brand programming availability for OEM requirements. **Shipping & Support:** Enjoy free standard shipping on orders over $99 with convenient fulfillment from multiple US locations (Danville, CA and Beaufort, SC) for fast delivery. Our technical team is available to assist with compatibility questions and installation support.