The JBX05490 3m 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for modern data center networking. Engineered specifically for NVIDIA Mellanox compatible systems, this cable delivers exceptional reliability and speed for demanding enterprise environments. **Technical Excellence** This passive DAC cable utilizes premium 30AWG twinax copper construction, delivering 40GB data rates with consistent performance across its 3-meter length. The QSFP+ form factor provides industry-standard connectivity, while the passive design eliminates the complexity and power requirements of active solutions, reducing operational costs and heat generation. **Compliance and Certification** Fully compliant with IEEE 802.3ba specifications and qualified to SFF-8436 standards, the JBX05490 meets stringent international requirements including RoHS/ELV directives and carries TUV/UL safety certifications. This ensures compatibility with enterprise-grade equipment and compliance with environmental regulations. **Superior Reliability** Manufactured with precision in Vietnam and China, this cable features robust plastic jacketing that protects against interference and physical damage. The wide operating temperature range (0-70°C) ensures consistent performance across diverse data center environments, from standard cooling conditions to optimized thermal zones. **Cost-Effective Performance** As a passive solution, this DAC cable eliminates recurring power costs and maintenance overhead associated with active alternatives. The 3-meter length provides flexibility for rack-to-rack connectivity without excessive slack, optimizing cable management and airflow in densely populated server environments. **OEM Replacement Compatibility** Direct replacement for NVIDIA Mellanox OEM part numbers (MCP1700-B003E, MC2206130-003, MC2210130-003), simplifying procurement and reducing downtime during upgrades or repairs. **Ideal Applications** - Data center interconnects - High-performance computing clusters - Cloud infrastructure networks - Storage area networks (SAN) - Enterprise switching environments Backed by a 90-day limited warranty and eligible for free standard shipping on orders over $99, the JBX05490 delivers professional-grade networking performance at exceptional value. Choose reliability—choose JBX05490.