The JBX05468 3m Cisco Compatible 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a premium networking solution designed for organizations requiring ultra-reliable high-speed data transmission. This passive DAC cable eliminates the need for external power supplies, reducing operational costs while delivering consistent 40Gbps performance. **Key Technical Specifications:** Featuring 30AWG twinax copper construction, this cable meets stringent IEEE 802.3ba and SFF-8436 standards for 40GBASE-CR4 applications. The QSFP+ connectors provide secure, tool-free connections to compatible equipment. With dimensions of 12x12x3 and a 3-meter length, it's optimized for rack-to-rack connectivity in standard data center layouts. **Compliance & Certification:** TUV, UL, RoHS, and EU Directive 2002/95/EC certifications ensure this cable meets international safety and environmental standards. Manufactured in Vietnam and China using quality-controlled processes, each unit undergoes rigorous testing for reliability. **Performance & Durability:** Operating across 0-70°C temperature ranges, this cable maintains signal integrity in diverse environments. The robust plastic jacketing protects against physical damage while the passive design ensures zero latency introduction. **Application & Compatibility:** Ideal for data centers, enterprise networks, and high-frequency trading environments, this cable seamlessly integrates with Cisco infrastructure. It directly replaces QSFP-H40G-CU3M and MA-CBL-40G-3M OEM parts, simplifying upgrades and replacements. **Value Proposition:** With free standard shipping on orders exceeding $99 and a 90-day limited warranty, this solution delivers enterprise-grade reliability at competitive pricing. Custom brand programming is available for bulk orders, making it suitable for resellers and integrators. Whether upgrading existing infrastructure or deploying new networks, the JBX05468 provides the performance and reliability modern networks demand.