The JBX05346 0.5m 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable is a specialized networking component designed to meet the demanding requirements of modern enterprise data centers and high-performance computing environments. This cable provides a direct, copper-based connection solution that eliminates the complexity and cost associated with active components while maintaining exceptional signal integrity. Technical Excellence: Manufactured to IEEE 802.3ba specifications, this cable operates at 40Gbps with superior performance characteristics. The 30AWG twinaxial copper conductor design minimizes signal degradation over short distances, making it particularly effective for rack-to-rack or switch-to-server connections. The plastic jacketing provides additional protection against environmental factors and mechanical stress. Compatibility & Integration: Purposefully engineered as a Palo Alto Networks-compatible solution, this cable directly replaces OEM part number PAN-QSFP-CU-0.5M, ensuring seamless integration into existing Palo Alto Networks infrastructure. The QSFP+ form factor is industry-standard across major networking vendors, providing flexibility for mixed-vendor deployments. Compliance & Reliability: Fully RoHS and ELV compliant, meeting EU Directive 2002/95/EC standards for environmental responsibility. TUV and UL safety certifications ensure the cable meets stringent electrical safety requirements. Wide operating temperature range (0-70°C) supports diverse deployment scenarios from climate-controlled data centers to field installations. Practical Advantages: Passive DAC technology eliminates power consumption and heat generation, reducing cooling requirements and operational costs. The 0.5-meter length is ideal for dense switch configurations and short-span interconnects where shorter cables provide better cable management and reduced footprint. Available from two distribution centers (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Customization & Support: Custom brand programming available for organizations requiring proprietary labeling. Backed by a 90-day limited warranty providing peace of mind on your investment. Perfect for network administrators, data center engineers, and IT professionals seeking reliable, cost-effective high-speed connectivity solutions.