The JBX05404 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for modern data center networking requirements. This 1-meter cable is specifically engineered for Palo Alto Networks platforms, ensuring flawless compatibility with enterprise security appliances and network infrastructure. **Technical Specifications:** Our cable features 30AWG twinax copper construction with professional-grade plastic jacketing, designed to withstand the demanding environments of modern data centers. Measuring 12x12x2 inches with a total length of 1 meter, it provides the ideal balance of reach and manageability for rack-mounted equipment configurations. The cable operates across the full industrial temperature range of 0°C to 70°C (32°F to 158°F), ensuring reliable performance in various facility conditions. **Performance & Standards:** Qualified to IEEE 802.3ba specifications, this passive DAC cable delivers consistent 40GB data rates without signal degradation. The passive design eliminates active components, reducing operational costs, power requirements, and potential points of failure. Copper connectors at both QSFP+ terminations ensure secure, low-insertion-loss connections that maintain signal integrity over the cable length. **Compliance & Certifications:** Fully compliant with RoHS/ELV directives (EU 2002/95/EC), this cable meets TUV and UL safety standards, guaranteeing safe operation in professional environments. The cable carries a 90-day limited warranty and is manufactured to the highest quality standards in Vietnam and China. **Applications & Use Cases:** Ideal for data center environments where cost-effective, high-speed connectivity is essential. Perfect for top-of-rack switch connections, server-to-switch communications, and storage networking applications. The 1-meter length suits typical rack depths and spacing configurations. Direct replacement for OEM part number PAN-QSFP-CU-1M, ensuring drop-in compatibility with existing Palo Alto Networks deployments. **Why Choose This Cable:** Passive DAC technology eliminates power consumption and heat generation compared to active alternatives. Proven reliability in enterprise data center environments. RoHS-compliant materials reduce environmental impact. Custom brand programming available for resellers and large deployments. Free standard shipping on qualifying orders with availability from two U.S. distribution centers for rapid delivery.