The JBX05423 2.5m 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents an industry-standard solution for enterprises demanding high-performance Ethernet connectivity in data center environments. This meticulously engineered twinax copper cable delivers uncompromising 40GB data rates while maintaining signal integrity critical for mission-critical applications. Key Technical Specifications: This cable features a robust 30AWG twinax copper construction with protective plastic jacketing, measuring 12x12x3 dimensions for optimal space efficiency. The QSFP+ connectors provide standard 40GBASE-CR4 compatibility, supporting IEEE 802.3ba and SFF-8436 specifications. Operating reliably across 0-70°C temperature ranges, it's engineered for both controlled data center environments and flexible deployment scenarios. Compatibility & Integration: Designed specifically for NVIDIA Mellanox infrastructure, this passive DAC cable directly replaces OEM part numbers MC2206130-02A, MC2210130-0A2, and MCP1700-B02AE. Its passive architecture eliminates external power requirements, reducing deployment complexity and operational costs compared to active alternatives. Compliance & Quality Assurance: Fully RoHS and TUV certified, this cable adheres to EU Directive 2002/95/EC standards, ensuring environmental responsibility and workplace safety. The 90-day limited warranty provides peace-of-mind protection for your investment. Application Scenarios: Ideal for switch-to-server connections, storage area network (SAN) implementations, and inter-switch uplinks in enterprise data centers. The 2.5m length balances flexibility with cable management efficiency in standard rack installations. Value Proposition: By choosing this NVIDIA Mellanox compatible cable, you gain cost-effective 40GB connectivity without sacrificing quality or reliability. Compared to longer active optical cables, passive DAC solutions offer superior ROI while maintaining identical performance metrics. Ships from US locations (Danville, CA and Beaufort, SC) with complimentary standard shipping on orders exceeding $99, and custom brand programming is available for enterprise deployments.