The JBX05374 1-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable represents an essential connectivity solution for modern data center infrastructure. Engineered specifically for Brocade-compatible networking equipment, this high-speed cable delivers exceptional performance and reliability in demanding enterprise environments. **Technical Specifications:** This passive DAC cable features premium 30AWG twinax copper construction with protective plastic jacketing, delivering consistent 40Gbps data transmission speeds without active amplification. The dual QSFP+ connectors (QSFP+ to QSFP+) enable direct connection between compatible network switches, routers, and interface cards. Operating across a temperature range of 0-70°C (32-158°F), the cable maintains peak performance in diverse deployment conditions. **Compliance & Certifications:** Full RoHS/ELV compliance ensures environmental responsibility and regulatory adherence. Safety certifications include TUV and UL approvals, with IEEE 802.3ba and SFF-8436 standards qualification guaranteeing interoperability with certified equipment. The cable is manufactured in Vietnam and China to strict quality standards. **Key Advantages:** Passive DAC technology eliminates the need for power-consuming active components, reducing operational costs and heat generation. The compact 1-meter length provides flexibility for data center rack configurations and switch-to-switch connections. The cable directly replaces OEM part number 40G-QSFP-C-0101, ensuring seamless integration with existing infrastructure. **Applications & Use Cases:** Ideal for enterprise data centers, high-performance computing environments, and carrier-grade networking deployments. Perfect for upgrading aging Brocade equipment or expanding 40Gigabit connectivity without extensive recabling. Suitable for server-to-switch, switch-to-switch, and storage array interconnections. **Value Proposition:** With free standard shipping on orders exceeding $99 and a 90-day limited warranty, the JBX05374 offers reliable, budget-conscious connectivity. Custom brand programming is available for volume enterprise orders. Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) ensuring rapid delivery and excellent customer support for networking professionals seeking proven 40GBASE-CR4 solutions.