The JBX05509 0.5-meter NVIDIA Mellanox Compatible 10GBASE-CR QSFP+ to SFP+ Direct Attach Copper Cable represents an essential networking component for modern data center infrastructure. This passive DAC (Direct Attach Copper) cable is engineered to deliver high-speed, low-latency connectivity while maintaining superior reliability and performance in demanding enterprise environments. ## Technical Specifications This cable features 30AWG twinax copper construction with professional-grade plastic jacketing, delivering consistent 10Gbps data transmission rates. The passive DAC design eliminates the need for active signal processing, resulting in lower latency, reduced power consumption, and improved overall system efficiency. With dimensions of 12x12x2 inches and a length of just 0.5 meters, it's optimized for short-distance connections between adjacent network equipment. ## Compatibility & Integration Specifically designed for NVIDIA Mellanox networking solutions, this cable directly replaces OEM part numbers 980-9I65U-00J00A and MC2309130-00A. It provides seamless connectivity between QSFP+ and SFP+ equipped devices, making it versatile for hybrid network architectures and gradual infrastructure upgrades. ## Compliance & Certification Fully compliant with EU directive 2002/95/EC (RoHS) and certified by TUV and UL, this cable meets stringent safety and environmental standards. These certifications ensure compatibility with enterprise procurement policies and demonstrate commitment to sustainable manufacturing practices. ## Performance & Reliability Operating reliably across temperatures from 0 to 70°C (32 to 158°F), this cable maintains performance consistency in various data center climates. The 90-day limited warranty provides peace of mind, while free standard shipping on orders over $99 offers excellent value for network infrastructure investments. ## Application Use Cases Ideal for data center interconnects, server-to-switch connections, storage area networks, and high-performance computing clusters. Whether upgrading existing 10GbE infrastructure or deploying new Mellanox-based networks, this cable delivers reliable performance with minimal deployment complexity. ## Why Choose This DAC Cable Passive DAC cables offer significant advantages over active alternatives and traditional fiber optics: lower cost, reduced power consumption, minimal latency, and exceptional reliability. The 0.5m length is perfect for rack-mounted equipment and adjacent switch connections where compact cabling is essential. Ships from conveniently located U.S. warehouses in Danville, CA and Beaufort, SC, ensuring quick delivery and reliable service. Custom brand programming is available for qualified volume orders, making this solution scalable for enterprise deployments.