The JBX05725 2.5m Cisco Compatible 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents enterprise-grade network connectivity engineered for modern data center and high-speed networking requirements. This high-performance solution delivers consistent 100GB data transmission rates essential for demanding applications including cloud infrastructure, virtualization platforms, and large-scale data transfers. **Technical Specifications & Performance:** Featuring robust 28AWG twinax copper conductors, this cable delivers superior signal integrity and minimal latency. The passive DAC architecture eliminates power requirements, reducing operational overhead while maintaining full compliance with IEEE 802.3bj and QSFP28 MSA standards. Operating temperatures from 0-70°C (32-158°F) ensure reliability across diverse deployment scenarios. **Quality Assurance & Compliance:** The cable meets stringent RoHS, TUV, and UL safety certifications, adhering to EU directive 2002/95/EC. This compliance ensures environmental responsibility and institutional confidence in enterprise environments. As a direct replacement for Cisco OEM part numbers QSFP-100G-CU2-5M and MA-CBL-100G-250CM, compatibility is guaranteed. **Ideal Applications:** - Data center switch-to-switch interconnections - High-performance computing cluster networking - Server-to-switch direct connections - Storage area network (SAN) deployments - Enterprise virtualization infrastructure **Advantages Over Alternatives:** Unlike optical fiber cables requiring specialized connectors and expertise, this passive DAC cable offers immediate plug-and-play deployment. The 2.5-meter length accommodates typical rack-to-rack distances while maintaining affordability. Cost-effectiveness combined with performance reliability makes this cable an intelligent choice for capacity upgrades and infrastructure expansion. **Warranty & Support:** Included 90-day limited warranty provides peace-of-mind protection. Custom brand programming is available for organizations requiring proprietary branding. Fast shipping from US locations (Danville, CA and Beaufort, SC) ensures rapid deployment timelines. Free standard shipping on orders exceeding $99 adds exceptional value.