The JBX05779 2-meter 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a cost-effective solution for high-speed data center networking. Designed specifically for Ruckus compatibility, this cable delivers enterprise-grade performance without the complexity and expense of active components. Technical Specifications: The cable features 28AWG twinax copper conductors with precision-engineered QSFP28 connectors on both ends. It meets IEEE 802.3bj specifications for 100GB Ethernet transmission, ensuring reliable operation across demanding network architectures. The passive design eliminates power consumption and associated heat generation, making it an environmentally conscious choice for sustained deployments. Performance & Reliability: With a maximum operating temperature of 70°C and minimum of 0°C, this cable performs consistently across various data center conditions. The copper twinax construction minimizes electromagnetic interference while maintaining signal integrity over the full 2-meter distance. The plastic jacketing provides mechanical protection without adding unnecessary bulk. Applications & Use Cases: Ideal for connecting high-density switch ports, server network interface cards, and storage systems within data centers. Perfect for applications requiring low-latency communication between network equipment, including cloud infrastructure, financial trading systems, and scientific computing facilities. Compliance & Certification: Fully certified to RoHS/ELV directives and safety standards including TUV and UL certification. The cable meets EU directive 2002/95/EC requirements for hazardous substance restriction. Value Proposition: This cable offers significant cost savings compared to active optical cables while delivering identical performance for short-distance interconnects. The 90-day limited warranty provides peace of mind, and free standard shipping on orders over $99 makes this an economical choice for bulk deployments. Whether replacing OEM part E100G-QSFP-QSFP-P-0201 or deploying in new installations, this cable delivers reliable 100GB connectivity.