The JBX05426 2.5m QSFP+ Passive Direct Attach Copper Cable represents enterprise-grade connectivity engineered for demanding data center environments. This cable serves as a direct replacement for Palo Alto Networks part number PAN-QSFP-CU-2.5M, delivering seamless compatibility with existing network infrastructure. **Technical Specifications:** Built to IEEE 802.3ba and SFF-8436 standards, this 40GBASE-CR4 cable supports high-speed data transmission at 40GB rates. The passive architecture eliminates power consumption and complexity while delivering superior performance compared to active alternatives. The 30AWG twinax copper construction minimizes signal degradation over the 2.5-meter distance, ensuring reliable low-latency connectivity essential for time-sensitive applications. **Key Features:** - Passive design with no active components - RoHS and ELV compliant construction - TUV and UL safety certifications - Operating temperature range: 0-70°C - QSFP+ to QSFP+ connector configuration - Compact 12x12x3 dimensions for easy installation **Applications & Benefits:** Perfect for enterprise data centers, cloud environments, and high-performance computing clusters requiring cost-effective 40GB interconnections. The passive DAC eliminates the need for external power sources, reducing operational costs and system complexity. Ideal for equipment stacking, switch-to-server connections, and storage system integration within Palo Alto Networks deployments. **Quality Assurance:** Every cable undergoes rigorous testing to ensure compliance with international standards. Backed by a 90-day limited warranty and supported by free standard shipping on orders exceeding $99. Available with custom brand programming for enterprise deployments. Manufactured in Vietnam and China with quality control standards meeting international specifications.