The JBX05811 3m Ruckus-compatible 100GBASE-CR4 QSFP28 passive direct attach copper cable represents the optimal solution for organizations seeking reliable, cost-effective high-speed connectivity in modern data center environments. **Technical Excellence** This passive DAC cable leverages 28AWG twinax copper construction to deliver consistent 100GB data rates over 3-meter distances. Engineered to IEEE 802.3bj specifications and QSFP28 MSA standards, it ensures seamless compatibility with Ruckus networking equipment and other standards-compliant infrastructure. The cable eliminates the need for active electronics, reducing power consumption and heat generation while maintaining exceptional signal integrity. **Enterprise-Grade Compliance** Fully RoHS and ELV compliant under EU directive 2002/95/EC, this cable meets stringent safety certifications from TUV and UL. The robust plastic jacketing protects conductors from environmental stress, ensuring longevity in demanding deployment scenarios. **Practical Benefits** Compared to optical solutions, passive DAC cables offer significant cost savings while delivering comparable performance for shorter interconnect distances. The direct QSFP28-to-QSFP28 connection eliminates transceivers, reducing deployment complexity and operational overhead. This makes the JBX05811 ideal for switch-to-switch connections, server-to-switch deployments, and storage array interconnects. **Reliability & Support** Operating across a wide 0-70°C temperature range, this cable performs consistently in diverse environments. The 90-day limited warranty and convenient free standard shipping on orders exceeding $99 provide additional peace of mind for IT managers and network administrators. **Applications** Perfect for enterprise data centers, cloud infrastructure, high-frequency trading environments, and any deployment requiring cost-effective 100GB connectivity over short-to-medium distances. The cable replaces OEM part number E100G-QSFP-QSFP-P-0301, offering drop-in compatibility with existing installations.