The JBX06371 4-meter 25GBASE-CR SFP28 Passive Direct Attach Copper Cable represents the ideal solution for organizations requiring high-speed, low-latency network connectivity without the complexity and expense of active components. This professionally-engineered DAC cable delivers full 25Gbps performance using advanced twinax copper conductor technology paired with precision SFP28-to-SFP28 connectors. **Technical Excellence & Compatibility** Designed to Intel specifications and fully qualified to IEEE 802.3by and SFF-8402/8472 standards, this cable integrates seamlessly into existing enterprise infrastructure. The 26AWG gauge provides optimal signal transmission while minimizing insertion loss, ensuring reliable data transfer across your network backbone. With a 4-meter reach, it's perfectly sized for typical data center rack-to-rack deployments and server interconnects. **Durability & Reliability** Constructed with high-quality copper conductors and protective plastic jacketing, this cable withstands demanding operational environments. Operating reliably from 0°C to 70°C (32°F to 158°F), it's certified for RoHS compliance and carries TUV and UL safety certifications. This ensures your investment meets global environmental standards while maintaining the highest safety protocols. **Cost-Effective Performance** Unlike active cables, passive DAC technology eliminates power consumption overhead and reduces total cost of ownership. The JBX06371 provides enterprise-grade performance without premium pricing, making it an economical choice for large-scale deployments. It directly replaces OEM part XXVDACBL4M, offering superior compatibility across Intel and affiliated platforms. **Comprehensive Support** Every unit includes a 90-day limited warranty and ships from U.S. locations in Danville, CA and Beaufort, SC. Free standard shipping applies to orders over $99. Custom brand programming is available for OEM and enterprise customers requiring specialized configurations. **Ideal Applications** Perfect for server clustering, storage area networks, high-performance computing, top-of-rack switching, and any scenario demanding reliable 25Gbps connectivity with minimal latency.