The JBX05412 Dell Compatible 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal solution for organizations requiring high-speed, cost-effective connectivity in modern data center architectures. This 2.5-meter cable delivers exceptional performance for 40 Gigabit Ethernet applications while maintaining the reliability expected in enterprise environments. **Key Features & Specifications:** Built with premium 30AWG twinax copper conductors and reinforced plastic jacketing, this passive DAC cable provides superior signal integrity without requiring external power. The QSFP+ form factor with dual copper connectors ensures secure, industry-standard connectivity. Fully qualified to IEEE 802.3ba specifications and SFF-8436 standards, it guarantees seamless compatibility with Dell networking equipment, specifically replacing OEM part number 02-SSC-0382-2.5M. **Performance & Reliability:** Operating across temperatures from 0°C to 70°C (32°F to 158°F), this cable maintains consistent 40GB/s data transmission in demanding environments. The passive design eliminates thermal considerations and power consumption associated with active solutions, reducing operational costs while improving network efficiency. RoHS, TUV, and UL certifications confirm compliance with EU Directive 2002/95/EC and international safety standards. **Ideal Applications:** Perfect for connecting high-performance switches, servers, and storage systems in data centers, cloud computing facilities, and enterprise networks. The 2.5-meter length accommodates flexible rack layouts while the passive technology suits budget-conscious deployments requiring multiple cable runs. **Value & Support:** Enjoy free standard shipping on orders exceeding $99, with rapid fulfillment from Danville, CA or Beaufort, SC. Custom brand programming is available for organizations with specific labeling requirements. A comprehensive 90-day limited warranty provides peace of mind, backed by expert technical support. Manufactured with precision in Vietnam and China, this cable represents exceptional value for mission-critical networking infrastructure upgrades and expansions.