The JBX05692 4m 100GBASE-CR4 QSFP28 passive direct attach copper cable represents the ideal solution for organizations requiring cost-effective, high-performance 100GB network connectivity. This Ruckus-compatible cable eliminates the need for expensive active transceiver modules, providing direct point-to-point connections between compatible network equipment. **Key Features & Benefits:** Built with premium 26AWG twinax copper conductors and protective plastic jacketing, this cable delivers exceptional signal quality and reliability. The passive design means zero power consumption and minimal heat generation—critical advantages in dense switch deployments. At just 4 meters, it's optimized for short-reach applications typical in data center and enterprise ToR (top-of-rack) configurations. **Technical Excellence:** Fully qualified to IEEE 802.3bj and SFF-8665 standards, the JBX05692 ensures seamless interoperability with Ruckus network switches and compatible infrastructure. RoHS and TUV certifications guarantee environmental compliance and safety across global deployments. The cable operates reliably across a wide temperature range (0-70°C), suitable for various installation environments. **Reliability & Support:** Each cable includes a 90-day limited warranty, backed by professional support. The QSFP28 to QSFP28 connector design provides secure, keyed connections that prevent misalignment. Whether replacing OEM part E100G-QSFP-QSFP-P-0401 or expanding infrastructure, this cable delivers consistent performance. **Ideal Applications:** Perfect for data center upgrades, enterprise networking, and high-speed interconnects. The passive DAC approach works seamlessly with Ruckus switches and compatible network equipment, reducing total cost of ownership while maintaining 100GB performance standards. Free standard shipping on orders over $99 makes this a cost-effective networking investment.