The JBX05818 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a cost-effective, high-performance solution for enterprise and data center networking applications. With its 0.5-meter length, this cable is specifically engineered for short-reach, high-speed connections between network switches, servers, and storage devices within the same rack or adjacent equipment. Key Technical Specifications: This passive DAC cable utilizes 30AWG twinax copper construction to minimize signal loss and electromagnetic interference while maintaining exceptional data integrity. The QSFP28 connectors on both ends deliver 100GB/s bandwidth capacity, fully qualified to IEEE 802.3bj specifications and QSFP28 MSA standards. Operating temperature range of 0-70°C ensures reliable performance in diverse environmental conditions. Compliance & Certifications: Comprehensively certified for enterprise deployments with RoHS/ELV compliance under EU directive 2002/95/EC, TUV, and UL safety certifications. These certifications guarantee environmental responsibility and workplace safety standards. Extreme Networks Compatibility: Directly compatible with Extreme Networks infrastructure, replacing OEM part numbers including 100G-DACP-QSFPZ5M and 10410. Engineers and network administrators can confidently deploy this cable as a drop-in replacement without compatibility concerns. Advantages Over Alternatives: Passive DAC cables eliminate the power consumption and heat generation associated with active cables, reducing operational costs while improving cooling efficiency. The 0.5m length optimizes space utilization in dense server environments. Copper construction provides superior signal quality compared to alternative materials, ensuring maximum reliability for mission-critical applications. Applications: Ideal for hyperscale data centers, cloud infrastructure, high-performance computing clusters, and enterprise storage networks requiring high-speed, low-latency interconnections. Custom brand programming is available for organizations requiring OEM branding or specialized labeling. Warranty & Support: Backed by a 90-day limited warranty with convenient shipping from US locations (Danville, CA and Beaufort, SC). Free standard shipping available on qualifying orders over $99.