The JBX05024 represents cutting-edge networking infrastructure for modern data centers requiring high-capacity, low-latency connectivity. This 2-meter 400GBASE-CR8 QSFP-DD to 4x QSFP28 direct attach copper breakout cable combines exceptional performance with practical efficiency for enterprise network deployments. **Technical Specifications:** This passive breakout DAC cable features 30AWG twinax copper conductors housed in durable plastic jacketing, providing robust protection and reliable signal transmission. The QSFP-DD to quad QSFP28 configuration enables flexible network architecture by converting single 400GB connections into four 100GB connections, offering scalability without requiring additional active equipment. **Performance & Compatibility:** Designed as a direct replacement for Arista's CAB-D-4Q-200G-2M, this cable is fully qualified to ETC 400GBASE-CR8 specifications and adheres to QSFP-DD MSA and CMIS standards. It delivers 400GB data rates over the 2-meter distance, making it ideal for top-of-rack switch connections and short-reach intra-data center links where low latency is critical. **Key Advantages:** As a passive solution, this cable requires no external power or active components, resulting in lower power consumption, reduced heat generation, and simplified network architecture. This translates to lower operational costs and increased reliability compared to active optical solutions. The direct copper connection ensures minimal signal degradation over the cable length. **Compliance & Safety:** Fully RoHS and ELV compliant under EU directive 2002/95/EC, with TUV and UL safety certifications. Operating temperature range of 0-70°C ensures reliable performance in standard data center environments. The 90-day limited warranty provides protection for your investment. **Applications:** Ideal for data center aggregation layers, high-performance computing clusters, and storage area networks requiring 400GB uplink connectivity. Commonly deployed in environments using Arista switching infrastructure, this cable simplifies topology flexibility while maintaining superior performance standards. **Shipping & Support:** Enjoy free standard shipping on orders over $99, with convenient fulfillment from multiple locations. Custom brand programming is available for enterprise deployments with specific requirements.