The JBX05256 40GBASE-CR4 QSFP+ passive direct attach copper cable represents a cost-effective, high-performance solution for modern data center networking. Manufactured to exacting standards and fully Intel compatible, this 7-meter interconnect cable is engineered for seamless integration into enterprise-grade networking infrastructure. **Technical Specifications:** This cable features 26AWG twinax copper conductors with professional-grade plastic jacketing, delivering optimal signal quality for 40GB data transmission. The QSFP+ form factor connectors provide secure, reliable connections to Intel-compatible switches, servers, and storage arrays. With a 7-meter length, it accommodates medium-distance rack-to-rack connectivity while maintaining superior performance characteristics. **Standards & Compliance:** Qualified to IEEE 802.3ba and SFF-8436 standards, the JBX05256 meets all industry requirements for 40GBASE-CR4 applications. RoHS, TUV, and UL certifications ensure environmental compliance and safety across global markets. The cable operates reliably across temperatures from 0°C to 70°C, suitable for various data center conditions. **Advantages Over Active Solutions:** Unlike active optical cables, this passive DAC eliminates complicated firmware management, power consumption concerns, and compatibility issues. It provides a straightforward, reliable solution for budget-conscious organizations without sacrificing performance or reliability. **Applications:** Ideal for connecting high-speed network equipment in data centers, enterprise networks, and telecommunications infrastructure. Commonly deployed in switch-to-switch, switch-to-server, and server-to-storage configurations. **Quality Assurance:** Each cable includes a 90-day limited warranty. Custom brand programming is available for OEM and wholesale customers. Manufactured in Vietnam and China with rigorous quality control standards. **Shipping & Support:** Enjoy free standard shipping on orders over $99, with fulfillment from multiple US locations (Danville, CA and Beaufort, SC) for faster delivery. The passive design requires no special installation procedures—simply connect and configure in your network management system.