The JBX06376 4-meter 25GBASE-CR SFP28 Passive Direct Attach Copper Cable represents a premium networking solution for organizations requiring high-speed, cost-effective data center connectivity. Purpose-built for Ruckus-compatible switches and infrastructure, this cable delivers exceptional performance in demanding networking environments. **Technical Excellence** Constructed with premium 26AWG twinax copper cabling, this passive DAC achieves full 25Gbps data rates as specified by IEEE 802.3by standards. The passive architecture eliminates the need for active components, reducing heat generation, power consumption, and equipment complexity. At 4 meters, this cable length provides ideal flexibility for rack-to-rack connections, server interconnects, and switch stacking applications without unnecessary cable bulk. **Superior Build Quality** The SFP28-to-SFP28 copper connectors ensure secure, reliable connections with minimal signal loss. Protective plastic jacketing shields the twinax conductors from environmental interference and physical damage. All materials comply with RoHS and ELV directives, meeting international environmental and safety standards. TUV and UL certifications validate manufacturing quality and operational safety. **Proven Compatibility** Designed to replace Ruckus OEM part number E25G-SFP28-TWX-P-0401, this cable integrates seamlessly into existing Ruckus infrastructure. Cross-compatible with standards-compliant 25GBASE-CR implementations, enabling flexible multi-vendor deployments. **Real-World Applications** Ideal for data center expansion, switch virtualization, server clustering, and high-performance computing environments. The passive design makes this cable perfect for applications where power consumption and heat generation must be minimized. Operating temperature range of 0-70°C accommodates diverse deployment scenarios from climate-controlled data centers to field installations. **Professional Support** Backed by a 90-day limited warranty and available custom brand programming, this cable supports IT procurement flexibility. Fast shipping from strategically located facilities in Danville, CA, and Beaufort, SC, ensures rapid deployment. Free standard shipping on orders over $99 provides additional value for bulk deployments. **Choose Reliability** When infrastructure uptime matters, the JBX06376 delivers the performance, quality, and compatibility enterprises demand. Experience high-speed connectivity without compromise.