The JBX05733 2.5m HPE-compatible 100GBASE-CR4 QSFP28 passive direct attach copper cable represents the ideal solution for enterprise-grade 100Gbps network connectivity. Engineered with precision twinax copper construction and 28AWG gauge, this cable delivers exceptional signal quality and reliability in demanding data center environments. Key Technical Specifications: This passive DAC cable features copper connectors with QSFP28 form factor on both ends, supporting 100GB data transmission rates. The 2.5-meter length provides flexibility for equipment spacing in standard rack configurations. IEEE 802.3bj and QSFP28 MSA qualification ensure compatibility with leading network equipment manufacturers. Performance & Reliability: Passive DAC technology eliminates the need for external power, reducing operational costs and heat generation compared to active solutions. The robust plastic jacketing protects the twinax copper core, while RoHS and EU Directive 2002/95/EC compliance guarantee environmental safety. Operating temperatures from 0-70°C accommodate both standard and hot-aisle data center deployments. Compatibility & Replacement: Directly compatible with HPE systems, replacing OEM part numbers 845404-B21-2-5M, 834973-B24-250C, and R1N35A-2.5M. Suitable for connecting switches, servers, storage arrays, and other high-speed network infrastructure. Value Proposition: This cost-effective passive DAC cable offers superior value compared to active optics while maintaining exceptional performance for low-latency applications. With 90-day limited warranty and free standard shipping on orders over $99, it's an economical choice for expanding or upgrading your 100GB network infrastructure. Ideal for organizations seeking reliable, power-efficient connectivity solutions without compromising on speed or performance.