The JBX05463 3-meter 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal solution for modern data center infrastructure requiring high-speed, reliable connectivity. Specifically engineered for Arista network equipment, this cable delivers exceptional performance for enterprise-grade networking applications. **Superior Performance Specifications:** This cable is qualified to IEEE 802.3ba and SFF-8436 standards, ensuring compatibility with leading network equipment manufacturers. The 40GBASE-CR4 standard supports 40Gbps data transmission rates, making it perfect for high-bandwidth applications including cloud computing, virtualization, and large-scale data transfers. **Advanced Construction:** The cable features 30AWG twinax copper conductors with plastic jacketing, providing optimal signal integrity and durability. The QSFP+ to QSFP+ connector configuration enables direct connection between compatible switches, servers, and network devices without requiring additional transceivers or active electronics. **Compliance & Reliability:** Fully RoHS and ELV compliant per EU directive 2002/95/EC, this cable meets the highest international standards for environmental responsibility. TUV and UL safety certifications ensure reliability and safety in professional networking environments. A 90-day limited warranty provides peace of mind for your investment. **Passive Technology Benefits:** As a passive direct attach cable, the JBX05463 requires no external power, reducing operational costs and eliminating potential points of failure. This makes it an economical choice compared to active cables while maintaining excellent performance over the 3-meter distance. **Practical Advantages:** • Free standard shipping on orders exceeding $99 • Ships from strategically located US warehouses (Danville, CA and Beaufort, SC) • Compact dimensions ideal for dense rack environments • Custom brand programming available for OEM requirements • Compatible replacement for OEM part number CAB-Q-Q-3M **Use Cases:** Ideal for connecting QSFP+ equipped network switches, routers, and servers in modern data centers. The 3-meter length accommodates top-of-rack and end-of-row switch configurations. Perfect for organizations standardizing on Arista networking equipment or upgrading existing infrastructure. **Technical Compatibility:** Designed specifically for Arista-compatible equipment supporting 40GBASE-CR4 standard. The cable's passive design ensures plug-and-play installation without configuration requirements. Operating temperature range of 0-70°C covers standard data center environmental conditions. Invest in proven, standards-compliant networking infrastructure with the JBX05463 QSFP+ DAC cable.