The JBX05458 2m NVIDIA Mellanox Compatible 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal solution for high-performance data center networking environments requiring reliable, cost-effective connectivity at 40GB/s speeds. **Technical Specifications:** This passive direct attach copper (DAC) cable delivers exceptional performance with 30AWG twinax copper conductors housed in durable plastic jacketing. Operating at 40GBASE-CR4 speeds, it meets IEEE 802.3ba and SFF-8436 standards, ensuring full compatibility with NVIDIA Mellanox network infrastructure. The 2-meter length accommodates typical data center rack configurations while maintaining signal integrity without active components or external power requirements. **Key Features & Benefits:** Passive technology eliminates power consumption and heat generation compared to active alternatives, reducing operational costs and cooling requirements. The robust QSFP+ connector design ensures secure mating and consistent performance. RoHS and TUV certified compliance guarantees environmental responsibility and safety. Operating temperature range of 0-70°C supports standard data center environments. **Application & Use Cases:** Perfect for connecting Mellanox switches to servers, storage systems, and network adapters in enterprise data centers, high-performance computing clusters, and cloud infrastructure environments. The 2-meter specification suits both intra-rack and adjacent-rack connectivity scenarios. **Compatibility:** Directly replaces OEM part numbers MCP1700-B002E, MC2206130-002, and MC2210130-002. Fully compatible with NVIDIA Mellanox network equipment and qualified infrastructure components. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty. Custom brand programming available for enterprise deployments. Ships from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders over $99. **Quality Assurance:** Manufactured in Vietnam and China to stringent specifications, this cable meets EU Directive 2002/95/EC (RoHS) requirements and carries UL certification for electrical safety.