The JBX05829 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable is a premium networking solution designed for enterprise-class data centers and high-performance computing environments. This 0.5-meter cable represents the ideal balance between performance, reliability, and cost-effectiveness for short-distance, high-bandwidth applications. Technical Specifications & Performance: Built to IEEE 802.3bj specifications and QSFP28 MSA standards, this cable delivers robust 100GB/s data transmission over twinax copper conductors. The 30AWG gauge provides optimal impedance matching while minimizing signal degradation. With operating temperatures ranging from 0-70°C (32-158°F), the cable maintains performance consistency across diverse environmental conditions typical in modern data centers. Construction & Durability: The twinax copper core is protected by a durable plastic jacket rated for handling and environmental protection. All components feature full RoHS and UL certification, ensuring compliance with international safety and environmental standards. The QSFP28 connectors deliver secure, reliable connections with consistent contact resistance and minimal insertion loss. Compatibility & Integration: Explicitly qualified for Intel equipment, this cable seamlessly integrates with enterprise infrastructure from leading manufacturers. It directly replaces OEM part numbers XXLDACBL0-5M, 100CQQH3005, and 100CQQF3005, making upgrades straightforward and cost-effective. The passive design requires no external power or active components, reducing complexity and failure points. Ideal Applications: • Data center switch-to-server connections • Storage area network (SAN) interconnects • Rack-to-rack high-speed links • Enterprise network backbone segments • Cloud computing infrastructure upgrades Value Proposition: As a passive DAC solution, this cable eliminates the power consumption and heat generation associated with active optical cables, while delivering superior performance compared to longer copper runs. The 0.5m length is optimized for densely packed equipment configurations where space efficiency matters. Shipped from convenient U.S. locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, plus a 90-day limited warranty ensures customer confidence. Custom brand programming is available for volume orders requiring OEM labeling.