The JBX05722 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable is an essential networking component for organizations deploying high-speed data center and enterprise network infrastructure. This 5-meter cable represents the ideal balance between performance, reliability, and cost-efficiency for Ruckus-compatible switch environments. **Technical Specifications & Performance:** This passive direct attach copper (DAC) cable operates at 100GB speeds using the 100GBASE-CR4 standard, qualified to IEEE 802.3bj specifications and QSFP28 MSA standards. The 26AWG twinax copper construction minimizes signal degradation while the 5-meter length provides optimal flexibility for rack-to-rack connectivity without signal loss. Operating across a temperature range of 0-70°C (32-158°F), this cable maintains consistent performance in diverse data center environments. **Compatibility & Integration:** Designed as a Ruckus-compatible solution, the JBX05722 seamlessly integrates with Ruckus switch ecosystems. QSFP28 to QSFP28 connectors ensure universal compatibility with 100GBASE-CR4 capable equipment. The cable replaces OEM part number E100G-QSFP-QSFP-P-0501, providing a reliable alternative for switch upgrades and replacements. **Quality Assurance & Compliance:** This cable meets strict regulatory standards including RoHS/ELV compliance and EU directive 2002/95/EC requirements. Comprehensive safety certifications (RoHS, TUV, UL) ensure workplace safety and environmental responsibility. The passive copper construction eliminates power requirements, reducing operational complexity and potential failure points. **Cost-Effective Advantages:** Passive DAC cables eliminate the need for separate transceivers, reducing overall infrastructure costs while maintaining 100GB performance levels. The absence of active electronics provides lower power consumption, reduced heat generation, and enhanced reliability compared to active alternatives. **Applications & Use Cases:** Ideal for data centers, high-frequency trading environments, cloud infrastructure, and enterprise networks requiring ultra-high-speed connections. Particularly suited for switch-to-switch connectivity, server clustering, and storage area network (SAN) deployments. **Warranty & Support:** Backed by a 90-day limited warranty, with free standard shipping on orders over $99. Ships from convenient locations in Danville, CA and Beaufort, SC. Custom brand programming available for enterprise deployments requiring specific identification requirements.