The JBX06064 4m NVIDIA Mellanox Compatible 10GBASE-CR SFP+ Passive Direct Attach Copper Cable represents a premium solution for modern data center infrastructure requirements. Engineered to exacting industry standards, this cable delivers consistent 10GB Ethernet performance while maintaining cost-effectiveness compared to active alternatives. **Technical Specifications:** This passive DAC cable features 24AWG Twinax copper construction encased in protective plastic jacketing, providing optimal signal transmission and durability. The cable measures 4 meters in length, making it ideal for connections between adjacent racks or equipment clusters. Qualified to both SFF-8431 and SFF-8472 specifications, it meets rigorous industry performance benchmarks. **Compatibility & Integration:** Designed specifically for NVIDIA Mellanox networking solutions, this cable seamlessly integrates with qualifying SFP+ ports on switches, network interface cards, and data center equipment. It replaces OEM part numbers MC3309124-004 and 980-9I682-00J004, ensuring drop-in compatibility with existing infrastructure investments. **Performance & Reliability:** As a passive DAC solution, this cable requires no external power, eliminating potential points of failure and reducing complexity in network deployments. The direct copper-to-copper connection minimizes latency while maintaining signal integrity. Operating temperature range of 0-70°C (32-158°F) covers standard data center environmental conditions. **Compliance & Certification:** Fully RoHS and ELV compliant, meeting EU Directive 2002/95/EC requirements. TUV and UL certifications ensure safety and reliability standards are met. The cable adheres to the Harmony Code 8544.42.9090 for international trade compliance. **Warranty & Support:** Backed by a comprehensive 90-Day Limited Warranty, providing peace of mind for your networking investment. Ships from strategically located US facilities (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. **Applications:** Ideal for high-speed data center environments, enterprise network upgrades, hyperscale infrastructure, and any deployment requiring reliable 10GB connectivity over short distances. The passive design makes it particularly cost-effective for bulk deployments in space-constrained rack environments.