The JBX05342 0.5-meter QSFP+ passive direct attach cable represents an optimal solution for organizations seeking affordable, high-performance connectivity in modern data center environments. This cable combines robust engineering with proven compatibility, making it an ideal choice for network administrators upgrading infrastructure or expanding existing deployments. **Technical Excellence** Designed to 40GBASE-CR4 specifications, this passive DAC cable delivers full 40GB throughput with minimal latency. The 30AWG twinax copper construction ensures superior signal quality while the QSFP+ connectors provide secure, reliable connections. Qualified to IEEE 802.3ba standards, it meets the demanding requirements of enterprise-grade networking applications. **Compatibility & Integration** Fully compatible with NVIDIA Mellanox switching and adapter cards, this cable seamlessly integrates into existing infrastructure. It replaces multiple OEM part numbers including MC2206130-00A, MCP1700-B00AE, and MC2210130-00A, offering flexibility for various equipment configurations. The standardized form factor ensures straightforward installation without additional adapters or converters. **Reliability & Compliance** RoHS and TUV certified for safety and environmental standards, this cable operates reliably across temperatures from 0 to 70°C. The plastic jacket provides durability while the copper twinax core maintains signal integrity. With a 90-day limited warranty, you can confidently deploy this solution in mission-critical environments. **Ideal Applications** Perfect for server interconnects, storage area network (SAN) upgrades, and high-performance computing clusters. The compact 0.5m length accommodates short-range connections typical in rack-mounted equipment configurations. The passive design eliminates power consumption, reducing operational costs while delivering enterprise-grade performance. **Value Proposition** Choose this cable for cost-effective 40GB connectivity without compromising quality or reliability. Fast, free shipping on orders over $99, with convenient fulfillment from US locations.