The JBX05866 1.5m 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents a superior networking solution for enterprise data centers requiring high-speed, reliable connectivity. This cable is specifically engineered to be fully compatible with Palo Alto Networks equipment, making it an ideal replacement for part number PAN-QSFP28-DAC-1.5M. **Technical Specifications & Performance:** Utilizing 30AWG twinax copper construction with plastic jacketing, this passive DAC delivers 100GBASE-CR4 speeds without requiring active signal processing. The cable meets IEEE 802.3bj and QSFP28 MSA standards, ensuring compliance with industry specifications. QSFP28 to QSFP28 copper connectors provide secure, consistent connections in high-density networking environments. **Key Advantages:** Passive direct attach copper technology eliminates the need for power-consuming active electronics, reducing operational costs and generating minimal heat. The 1.5-meter length offers optimal flexibility for connecting adjacent equipment without excessive cable runs. This length is particularly suitable for top-of-rack and end-of-row switch deployments in modern data center architectures. **Compliance & Safety:** Fully RoHS and ELV compliant per EU directive 2002/95/EC, with TUV and UL safety certifications. The cable operates reliably across a 0-70°C temperature range, accommodating varied data center thermal conditions. **Value & Support:** Designed as a cost-effective alternative to OEM cables, this solution maintains enterprise-grade reliability with comprehensive compliance certifications. Custom brand programming is available for organizational requirements. The 90-day limited warranty provides peace of mind, while free standard shipping on orders exceeding $99 offers additional savings. **Application Scenarios:** Ideally suited for enterprise data center networking, high-performance computing clusters, and virtualized infrastructure environments. Perfect for organizations standardizing on Palo Alto Networks security and networking platforms seeking reliable, budget-conscious connectivity solutions.