The JBX05081 1.5m 400GBASE-CR8 QSFP-DD to 8x SFP56 Direct Attach Copper cable represents the ideal connectivity solution for modern high-speed data center infrastructure. Designed specifically for Arista-compatible environments, this passive breakout DAC delivers exceptional performance and reliability in demanding network deployments. **Technical Specifications:** This cable features a QSFP-DD (Quad Small Form Factor Pluggable Double Density) connector on one end and eight SFP56 connectors on the other, enabling efficient port breakout for enhanced network flexibility. The 30AWG twinax copper construction provides optimal signal transmission with minimal attenuation, ensuring 400Gbps data rates without signal degradation. Operating temperature range of 0-70°C accommodates various data center environments, from standard cooling to edge deployments. **Quality Assurance & Compliance:** All JBX05081 cables meet strict international standards including RoHS (Restriction of Hazardous Substances) and EU Directive 2002/95/EC compliance, ensuring environmental responsibility. With TUV and UL safety certifications, this cable has undergone rigorous testing to guarantee reliability. The 90-day limited warranty provides peace of mind for enterprise customers. **Advantages of Direct Attach Copper:** Unlike active optical cables, passive DAC solutions eliminate external power requirements, reducing total cost of ownership and simplifying deployment. The JBX05081 offers superior performance in short-to-medium distance connections typical of intra-rack and adjacent-rack communications. **Compatibility & Applications:** This cable serves as a direct replacement for Arista's CAB-D-8S-400G-1.5M, ensuring plug-and-play compatibility with existing Arista switches and network infrastructure. Ideal for high-density data centers, content delivery networks, and enterprise networks requiring 400Gbps interconnects with granular port density. **Additional Features:** Shipped from strategically located US distribution centers in California and South Carolina, this product qualifies for free standard shipping on orders exceeding $99. Custom brand programming is available for enterprise customers requiring white-label solutions.