The JBX05191 1-meter 40GBASE-CR4 QSFP+ to 4x SFP+ direct attach copper cable represents a premium passive breakout solution engineered for demanding data center and enterprise networking applications. This Dell-compatible cable (OEM P/N 470-AAGD and 470-AAVO replacement) delivers impressive 40GB data transmission capabilities without requiring external power or active electronics, making it an economical choice for infrastructure upgrades. CONSTRUCTION & SPECIFICATIONS: Featuring 30AWG twinax copper cable with protective plastic jacketing, the JBX05191 maintains rigorous electrical performance standards. Its QSFP+ connector breaks out to four independent SFP+ ports, enabling one-to-four port expansion or aggregation. The 1-meter length provides optimal flexibility for cabinet-level deployments while minimizing signal degradation. Manufactured in Vietnam and China with strict quality control, this cable operates reliably across 0-70°C temperature ranges. COMPLIANCE & CERTIFICATIONS: Fully qualified to IEEE 802.3ba and SFF-8436 standards, the JBX05191 meets international safety requirements including RoHS/ELV directive 2002/95/EC, TUV, and UL certifications. This ensures compatibility with regulated environments and future-proof compliance. IDEAL APPLICATIONS: Perfect for Dell PowerEdge servers, high-performance storage systems, and virtualization platforms requiring direct copper connectivity. Passive DAC cables eliminate latency introduced by active components, delivering nanosecond-level responsiveness critical for trading platforms, scientific computing, and real-time analytics. VALUE PROPOSITION: Compared to active optical cables or other interconnect solutions, passive twinax DACs offer superior cost-per-gigabit performance, zero power consumption, and simplified deployment. The custom brand programming option enables white-label solutions for resellers and integrators. Backed by a 90-day limited warranty and free standard shipping on orders exceeding $99, this cable delivers enterprise-grade reliability at accessible pricing. Ships from conveniently located U.S. warehouses (Danville, CA and Beaufort, SC) for rapid deployment.