The JBX05058 0.5m 200GBASE-CR8 QSFP-DD to 8x SFP28 Direct Attach Copper (DAC) breakout cable represents a cost-effective, high-performance solution for modern data center and enterprise network deployments. As a direct compatible replacement for Arista's CAB-D-8S-200G-0.5M, this cable delivers identical functionality while offering superior value. **Technical Specifications & Performance** This passive breakout cable operates at 200Gb/s data rates using high-quality 30AWG twinax copper conductors. The single QSFP-DD connector intelligently distributes signal across eight SFP28 ports, enabling scalable network architecture without bottlenecks. The compact 0.5-meter length strikes the optimal balance between connectivity flexibility and space efficiency, perfect for dense equipment racks. **Robust Construction & Compliance** Manufactured from premium copper with protective plastic jacketing, the cable ensures durability and longevity in demanding environments. The robust construction withstands the rigors of high-volume data centers while maintaining signal integrity. Comprehensive safety certifications—including RoHS, TUV, and UL compliance with EU directive 2002/95/EC—guarantee adherence to international standards for hazardous substance restrictions. **Operational Advantages** As a passive DAC solution, this breakout cable eliminates the need for active electronics, resulting in zero power consumption and negligible heat generation. This proves invaluable in power-constrained and thermally-managed data center environments. The cable operates reliably across the 0-70°C temperature range, accommodating both standard facilities and edge computing applications. **Ideal Applications** Perfect for network equipment upgrades, data center expansions, and enterprise backbone consolidation, this cable serves organizations requiring high-speed breakout connectivity. Common applications include switching fabric aggregation, server cluster interconnects, and storage area network (SAN) deployments. **Value & Support** The cable includes a 90-day limited warranty covering manufacturing defects. Custom brand programming options are available for OEM integration. Free standard shipping applies to orders over $99, with fulfillment from established facilities in Danville, CA and Beaufort, SC, ensuring rapid delivery to continental US locations. **Why Choose This Cable?** While comparable alternatives exist, this Arista-compatible breakout cable combines genuine OEM compatibility, certified quality standards, passive economics, and proven reliability at a competitive price point—delivering exceptional ROI for network infrastructure investments.