The JBX05335 0.5m 40GBASE-CR4 QSFP+ passive direct attach copper cable represents an excellent solution for HPE-based data center environments requiring efficient, high-speed connectivity. This carefully engineered cable combines reliable passive technology with premium materials to ensure optimal performance in demanding network applications. Key Technical Specifications: This cable features QSFP+ connectors on both ends, supporting 40GB data rates with IEEE 802.3ba compliance. The 30AWG twinax copper construction provides superior signal integrity while maintaining flexibility for installation in tight spaces. Operating from 0°C to 70°C, it accommodates diverse data center environments without performance degradation. Construction and Materials: Built with high-quality copper twinax conductors and durable plastic jacketing, this cable withstands rigorous installation and deployment scenarios. The compact 0.5-meter length is ideal for switch-to-server, switch-to-storage, and switch-to-switch connections within equipment racks. Compliance and Certification: Fully compliant with RoHS/ELV directives and IEEE 802.3ba standards, this cable meets EU directive 2002/95/EC requirements. TUV and UL safety certifications ensure reliability and safety in professional installations. Performance Benefits: As a passive DAC solution, this cable eliminates power requirements, reducing operational costs and heat generation. Direct attach technology minimizes latency, making it perfect for latency-sensitive applications in financial services, cloud computing, and high-performance computing environments. Compatibility and Integration: Designed as a drop-in replacement for HPE part number 670759-B21, integration into existing HPE infrastructures is seamless. The cable supports rapid deployment with no configuration required. Warranty and Support: Backed by a 90-day limited warranty, this cable provides peace of mind for critical network deployments. Available with custom brand programming options for enterprise requirements. Ships from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, ensuring quick delivery to your facility.