The JBX05030 400GBASE-CR8 QSFP-DD breakout DAC cable represents a cost-effective, high-performance solution for modern data center architectures requiring 400GB-capable connectivity. As a direct attachment copper (DAC) cable, it eliminates the need for optical transceiver modules, reducing latency, power consumption, and overall system cost. **Technical Specifications:** This 2-meter passive breakout cable features QSFP-DD (Quad Small Form-Factor Pluggable Double Density) on one end connecting to four independent QSFP56 (Quad Small Form-Factor Pluggable) ports. The 28AWG gauge provides optimal signal integrity while maintaining flexibility for installation in confined spaces. Constructed with high-quality copper twinax conductors and professional-grade plastic jacketing, the cable is built to withstand the demands of enterprise environments. **Performance & Compatibility:** Qualified to rigorous ETC 400GBASE-CR8 specifications, this cable ensures standards-compliant performance for 400 Gigabit Ethernet deployments. It's specifically engineered as a compatible alternative to Arista's CAB-D-4Q-400G-2M cable, making it an excellent fit for existing Arista switch infrastructure and mixed-vendor environments. **Regulatory Compliance:** Meeting international standards including RoHS (Restriction of Hazardous Substances) and EU Directive 2002/95/EC, plus TUV and UL safety certifications, this cable ensures compliance with global environmental and safety requirements. Manufacturing locations in Vietnam and China maintain strict quality control protocols. **Ideal Applications:** - High-density data center switch deployments - Campus backbone networks - Storage area networks (SANs) - Cloud infrastructure interconnects - Enterprise switching fabric expansion - Server-to-switch connections in 400G environments **Environmental Rating:** Operating range of 0°C to 70°C (32°F to 158°F) supports standard data center conditions and moderate environmental variations. A 90-day limited warranty provides peace of mind for your infrastructure investment. **Ordering & Shipping:** Enjoy the convenience of free standard shipping on all orders exceeding $99. Stocked and shipped from strategically-located distribution centers in California and South Carolina for rapid delivery. Custom brand programming is available for bulk orders.