The JBX05023 1-meter 400GBASE-CR8 QSFP-DD to 4x QSFP28 breakout cable represents a strategic investment in modern data center infrastructure. As enterprises migrate toward higher-density networking architectures, this passive direct attach copper (DAC) solution provides a cost-effective alternative to active cables and optical transceivers while maintaining exceptional performance and reliability. **Technical Excellence** This cable implements 30AWG twinax construction with precision copper connectors, delivering the signal integrity demanded by 400GB network operations. The design adheres strictly to IEEE 802.3bs and QSFP-DD MSA standards, ensuring seamless compatibility with next-generation switching fabric. Unlike active solutions, the passive architecture eliminates power consumption, heat generation, and potential points of electronic failure—ideal for high-density cabinet deployments. **Arista Compatibility & Integration** Purpose-built as a direct replacement for Arista's CAB-D-4Q-200G-1M, this cable integrates flawlessly into existing Arista CloudVision and network management frameworks. The 1-meter length accommodates typical top-of-rack (ToR) and leaf-spine deployment scenarios while maintaining cable management efficiency. **Comprehensive Compliance** Full RoHS/ELV certification, TUV, and UL approval ensure this cable meets global regulatory standards. The plastic jacket protects against environmental factors while maintaining flexibility for installation in congested cable trays and equipment racks. **Practical Deployment Advantages** Operating reliably from 0°C to 70°C, the cable performs in standard data center environments and warm-aisle deployments. The rugged construction withstands repeated disconnect cycles, making it suitable for dynamic network reconfiguration during upgrades or maintenance. **Custom Solutions Available** For organizations requiring proprietary branding or specific cable identifiers, custom programming options are available, enabling seamless integration with internal asset management systems. **Support & Warranty** Backed by a 90-day limited warranty and shipped from strategically located US distribution centers (Danville, CA and Beaufort, SC), orders ship promptly with complimentary standard shipping on purchases over $99. This commitment to customer service ensures minimal deployment delays and rapid issue resolution if needed.