The JBX05160 4m 40GBASE-CR4 QSFP+ to 4x SFP+ Direct Attach Copper breakout cable represents a critical component in modern high-speed data center infrastructure. Engineered to meet stringent IEEE 802.3ba specifications, this cable delivers exceptional performance for demanding enterprise and cloud computing environments. **Technical Specifications:** This direct attach copper (DAC) cable features 26AWG twinax construction with copper connectors and plastic jacketing, ensuring optimal signal transmission and durability. At 4 meters in length, it provides sufficient reach for typical data center rack-to-rack connectivity without signal degradation. The passive design eliminates the need for active electronics, reducing operational costs and eliminating heat generation concerns. **Compatibility & Integration:** Fully compatible with Intel's X4DACBL4 specification, the JBX05160 integrates seamlessly with existing network infrastructure. The QSFP+ to 4x SFP+ breakout configuration allows single high-speed ports to be split into four independent 10GB connections, maximizing port utilization and flexibility. **Certifications & Compliance:** The cable meets all required safety and environmental standards including RoHS (EU Directive 2002/95/EC), TUV, and UL certifications. This ensures compliance with international regulations and corporate sustainability requirements. **Applications & Use Cases:** Ideal for data centers, network equipment manufacturers, server deployments, and enterprise networking environments requiring high-density connections. Particularly suited for applications where passive technology is preferred over powered alternatives. **Performance Benefits:** Passive DAC technology provides superior advantages over fiber alternatives in short-distance applications: lower latency, reduced equipment costs, minimal power consumption, and simplified installation. Operating temperature range of 0-70°C ensures reliable performance across diverse installation environments. **Why Choose JBX05160:** Combining Intel compatibility, robust construction, comprehensive certifications, and cost-effective passive design, this cable delivers exceptional value for data center professionals. Free standard shipping on orders over $99 makes enterprise deployments more economical. The 90-day limited warranty provides additional peace of mind for mission-critical applications.