The JBX05445 2-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable represents an essential connectivity solution for modern data centers and enterprise networks requiring high-speed, cost-effective interconnections. This HPE-compatible cable delivers exceptional performance for demanding applications without compromise. **Performance and Specifications:** With a 40GB data rate capability, this passive DAC cable operates according to IEEE 802.3ba standards and SFF-8436 specifications. The 30AWG twinax copper construction provides optimal signal integrity while minimizing attenuation over the 2-meter distance. As a passive solution, it requires no external power supply, reducing deployment complexity and operational costs compared to active alternatives. **Design and Construction:** The cable features QSFP+ connectors on both ends with premium copper contact points ensuring reliable, repeated connections. The robust plastic jacketing protects against environmental factors while maintaining flexibility for installation in equipment racks and network infrastructure. Compact dimensions (12x12x2) allow for efficient cable management in dense server environments. **Compatibility and Integration:** Direct HPE compatibility (replaces OEM part numbers 498385-B22 and AT096A) ensures plug-and-play installation with HPE networking equipment. The standardized QSFP+ form factor provides interoperability with a wide range of enterprise-grade switches and network interfaces. **Certifications and Compliance:** Fully RoHS and ELV compliant with TUV and UL safety certifications, this cable meets stringent international standards. Manufactured in Vietnam and China, it adheres to EU Directive 2002/95/EC environmental regulations. **Operating Conditions:** Reliable performance across 0-70°C operating temperature range supports diverse deployment scenarios from climate-controlled data centers to standard office environments. **Warranty and Support:** Backed by a 90-day limited warranty and available from multiple U.S. locations (Danville, CA and Beaufort, SC) for rapid fulfillment. Custom brand programming available for enterprise customers requiring OEM labeling.