The JBX05330 0.5m 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal solution for organizations requiring high-speed, cost-effective connectivity in their data center infrastructure. This premium-grade networking cable delivers consistent 40GB/s throughput while maintaining the low power consumption and minimal heat generation characteristic of passive DAC technology. Engineered with precision, the cable features 30AWG twinax copper conductors wrapped in protective plastic jacketing, providing durability without the complexity and cost associated with active components. The QSFP+ connectors are specifically designed to work seamlessly with Extreme Networks switches and equipment, ensuring plug-and-play compatibility and reliable performance. Key Technical Specifications: Compliance and Certification: The JBX05330 meets IEEE 802.3ba specifications and SFF-8436 standards, ensuring interoperability with industry-standard equipment. RoHS and TUV certifications confirm environmental responsibility and safety compliance across international markets. Performance Characteristics: With a 0.5-meter length, this cable is ideal for short-reach interconnects within server racks and between adjacent switches. The passive design eliminates external power requirements, reducing complexity and potential failure points while maintaining consistent signal integrity. Durability and Reliability: Operating across a wide temperature range (0-70°C/32-158°F), the cable maintains performance stability in diverse data center environments. The durable construction supports frequent connection cycles typical of dynamic IT infrastructures. Applications and Use Cases: Perfect for high-density server environments, virtualized data centers, and enterprise networks where multiple 40GB connections require efficient space utilization. The 0.5m length is optimal for connecting adjacent network equipment without excess cable length. Compatibility: Direct replacement for Extreme Networks part numbers including 40G-DACP-QSFPZ5M, 10311, and AA1404037-E6. Ships from US locations with free standard shipping on qualified orders, backed by a comprehensive 90-day limited warranty.