The JBX05325 40GBASE-CR4 QSFP+ passive direct attach copper cable represents a superior choice for data center and enterprise network deployments requiring high-speed, cost-effective connectivity solutions. At just 0.5 meters in length, this cable is engineered specifically for short-reach connections where latency minimization and signal integrity are paramount. Technical Specifications & Performance: This cable utilizes premium 30AWG twinax copper construction, delivering robust 40GB per second data transmission rates compliant with IEEE 802.3ba standards. The QSFP+ form factor with copper-to-copper connectors eliminates the need for active components or external power, reducing operational costs and complexity. Operating across temperatures from 0 to 70°C, it maintains reliability in diverse data center environments. Cisco Compatibility & Integration: Fully compatible with Cisco infrastructure, the JBX05325 serves as a direct replacement for OEM part numbers QSFP-H40G-CU0-5M and MA-CBL-40G-50CM, ensuring seamless integration into existing deployments without reconfiguration. Compliance & Quality Assurance: This cable meets rigorous international standards including RoHS (Directive 2002/95/EC) and UL certification, demonstrating commitment to environmental sustainability and electrical safety. The SFF-8436 compliance ensures interoperability with industry-standard QSFP+ interfaces. Advantages of Passive DAC Technology: Unlike active cables or transceivers, passive DAC cables consume zero power while delivering exceptional performance. This translates to reduced heat generation, lower operational costs, and simplified infrastructure management—critical advantages in high-density data center environments. Ideal Applications: Perfect for server-to-switch connections, switch-to-switch links, and high-speed storage area networks (SANs). The 0.5m length makes it exceptionally suitable for rack-mounted deployments where space efficiency and cable management are priorities. Shipping & Support: Shipped from conveniently located warehouses in Danville, CA and Beaufort, SC, orders qualifying for free standard shipping (over $99) benefit from rapid delivery. Backed by a 90-day limited warranty, your investment is protected. Custom brand programming is available for organizations with specific branding requirements.