The JBX05374 1-Meter Brocade Compatible 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for demanding data center networking environments. This passive DAC cable eliminates the need for active signal conditioning, reducing power consumption and operational complexity while maintaining exceptional signal integrity over short distances. **Technical Excellence:** Built to exacting IEEE 802.3ba specifications, this cable features 30AWG Twinax copper conductors enclosed in protective plastic jacketing. The QSFP+ to QSFP+ connector configuration ensures direct compatibility with Brocade networking equipment and other compliant devices. With a 1-meter length, it's perfectly suited for high-density switch interconnects and top-of-rack configurations. **Compliance & Reliability:** Full RoHS and TUV certification ensures compliance with EU Directive 2002/95/EC and international safety standards. The 90-day limited warranty provides peace of mind, while the robust construction withstands operating temperatures from 0 to 70°C, maintaining performance in demanding data center conditions. **Application Flexibility:** Ideally deployed in virtualized environments, cloud infrastructure, and enterprise data centers requiring 40GB connectivity. The passive design makes it particularly suitable for applications where power efficiency and minimal latency are critical. Compatible with Brocade switches, this cable seamlessly integrates into existing infrastructure. **Practical Advantages:** Passive DAC technology eliminates the need for external power sources, reducing cable management complexity. The compact form factor optimizes rack space, while superior shielding minimizes electromagnetic interference. Custom brand programming is available for enterprise customers requiring standardized equipment branding. **Value Proposition:** Compared to active optical solutions, this passive copper DAC delivers comparable performance at significantly lower cost, with minimal power draw and zero firmware requirements. Free standard shipping on orders exceeding $99 makes this an economical choice for infrastructure upgrades.