The JBX05747 2.5-meter 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a critical infrastructure component for modern data centers and high-performance computing environments requiring 100Gbps connectivity. This cable delivers exceptional value for organizations utilizing Palo Alto Networks security appliances and network equipment. **Technical Specifications & Performance** This passive DAC cable operates at 100GB data rates with full IEEE 802.3bj compliance and QSFP28 Multi-Source Agreement (MSA) certification. The 28AWG twinax copper construction provides superior signal integrity while maintaining passive operation—requiring no external power, reducing complexity and potential points of failure. Operating reliably across 0-70°C (32-158°F), the cable accommodates diverse deployment scenarios from climate-controlled data centers to edge computing facilities. **Compliance & Certification** Comprehensive safety and environmental certifications include RoHS (Restriction of Hazardous Substances), TUV, and UL standards. The cable adheres to EU Directive 2002/95/EC, ensuring compliance with international environmental regulations. These certifications guarantee that the cable meets stringent quality and safety requirements for enterprise deployments. **Palo Alto Networks Compatibility** Engineered as a direct replacement for Palo Alto Networks OEM part number PAN-QSFP28-DAC-2.5M, this cable integrates seamlessly with Palo Alto Networks PA series firewalls, switches, and network security appliances. The 2.5-meter length provides optimal flexibility for rack-to-rack deployments while maintaining signal quality without regeneration. **Applications & Use Cases** Ideal for: high-speed data center interconnects, network security appliance deployments, edge computing facilities, disaster recovery configurations, and multi-site enterprise networks. The passive design eliminates latency concerns, making it perfect for latency-sensitive applications including financial trading platforms, real-time analytics, and mission-critical security operations. **Advantages Over Active Cables** Passive DAC cables offer lower operational costs, zero power consumption, reduced heat generation, and exceptional reliability compared to active optical or electrical alternatives. This makes them the preferred choice for cost-conscious enterprises managing large-scale deployments. **Convenient Logistics** Shipped from US distribution centers (Danville, CA and Beaufort, SC), the cable qualifies for free standard shipping on orders exceeding $99. A 90-day limited warranty provides peace-of-mind protection for your investment. Custom brand programming is available for organizations requiring OEM-specific configurations.