The JBX05670 4-meter 100GBASE-CR4 QSFP28 passive direct attach copper (DAC) cable represents the optimal balance of performance, cost-efficiency, and reliability for modern data center infrastructure. Specifically engineered for Dell compatibility, this enterprise-grade interconnect solution delivers exceptional value for organizations seeking high-speed, low-latency network connectivity without the premium costs associated with active alternatives. **Technical Specifications & Performance:** Constructed with premium-grade 26AWG twinax copper, this passive DAC cable delivers full 100GB bandwidth with IEEE 802.3bj certification. The QSFP28-to-QSFP28 connector configuration ensures seamless compatibility with next-generation networking equipment. With a 4-meter reach, it accommodates typical data center topologies including switch-to-server, server-to-server, and rack-to-rack connections. The passive architecture eliminates external power requirements, reducing complexity while maintaining superior signal integrity. **Compliance & Safety Standards:** Full RoHS/ELV compliance and TUV/UL safety certifications ensure regulatory adherence across global markets. Manufactured to harmonization code 8544.42.9090 and qualified under the EU directive 2002/95/EC. This cable meets rigorous industry standards for enterprise deployments. **Key Advantages:** - **Cost-Effective:** Passive DAC technology eliminates active power requirements, reducing total cost of ownership - **Ultra-Low Latency:** Copper-based direct attachment minimizes signal propagation delays - **OEM Compatible:** Direct replacement for Dell part number 02-SSC-5814-4M - **Thermal Stability:** Operates reliably across 0-70°C temperature range - **Future-Proof:** IEEE 802.3bj qualification ensures long-term viability **Ideal Applications:** Perfect for data center interconnects, high-frequency trading environments, cloud infrastructure, server virtualization clusters, and enterprise storage networks requiring 100GB connectivity. The 4-meter length suits standard data center rack configurations while minimizing cable run distances. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty. Ships from strategically located distribution centers in Danville, CA and Beaufort, SC for rapid delivery. Qualifying orders receive free standard shipping, and custom brand programming is available for volume deployments. Invest in enterprise-grade networking infrastructure with the proven reliability and performance of this Dell-compatible 100GBASE-CR4 QSFP28 DAC cable.