The JBX05516 3-meter QSFP+ to SFP+ Direct Attach Copper Cable represents an optimal solution for organizations requiring reliable, high-speed connectivity in demanding network environments. This passive DAC cable is specifically engineered to meet the stringent requirements of modern data centers, cloud infrastructure, and enterprise networks that depend on NVIDIA Mellanox switching and networking solutions. **Technical Specifications & Performance:** This cable delivers consistent 10GBASE-CR performance with minimal signal degradation over its 3-meter span. The 30AWG twinax copper construction provides excellent signal integrity while maintaining flexibility for installation in tight spaces. The QSFP+ connector at one end and SFP+ connector at the other enable versatile compatibility across mixed-port networking architectures. With a temperature operating range of 0-70°C (32-158°F), this cable performs reliably in various environmental conditions found in data centers and server rooms. **Compatibility & Integration:** Designed as a direct replacement for NVIDIA Mellanox part number MC2309130-003 and compatible cross-reference 980-9I65T-00J003, this cable integrates seamlessly into existing infrastructure. It works with Mellanox switches, adapters, and networking equipment that utilize QSFP+ and SFP+ ports, eliminating compatibility concerns and simplifying deployment. **Quality & Compliance:** Manufactured to rigorous international standards, this cable carries full RoHS and ELV compliance, meeting EU Directive 2002/95/EC requirements. Multiple safety certifications including TUV and UL approval ensure dependable performance and safety in professional environments. The passive design—requiring no active electronic components—reduces failure points and enhances long-term reliability. **Advantages Over Alternatives:** Compared to active DAC cables or optical transceivers, this passive solution offers lower latency, reduced power consumption, and superior cost-effectiveness for shorter distances. The robust copper construction withstands repeated connections while maintaining signal quality. Ideal for cost-conscious enterprises seeking performance without complexity. **Applications:** Perfect for data center interconnects, server-to-switch connections, storage area networks (SANs), high-performance computing clusters, and enterprise network upgrades requiring 10Gb connectivity. Ships from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on qualifying orders. Includes 90-day limited warranty and optional custom brand programming for enterprise customers.