The JBX05000 is a sophisticated 1.5-meter 400GBASE-CR8 QSFP-DD to dual QSFP56 direct attach copper (DAC) breakout cable, specifically engineered to meet the demanding requirements of modern data center infrastructure. This passive breakout solution provides seamless connectivity between high-speed network switch ports and compatible networking equipment. **Technical Specifications & Construction:** Manufactured with precision-engineered 30AWG twinax copper conductors and protective plastic jacketing, this cable delivers exceptional signal integrity across its 1.5-meter length. The passive design eliminates power consumption concerns while maintaining full 400G performance capabilities. The cable meets IEEE ETC 400GBASE-CR8 and QSFP-DD MSA specifications, ensuring compatibility with industry-standard networking architecture. **Connectivity & Compatibility:** The QSFP-DD to 2x QSFP56 configuration allows network administrators to efficiently utilize bandwidth distribution, converting a single 400G port into dual 200G connections. Fully compatible with Arista equipment (replaces OEM part number CAB-D-2Q-400G-1.5M), this breakout cable integrates seamlessly into existing infrastructure. **Compliance & Certifications:** This product holds full RoHS and ELV compliance, meeting EU directive 2002/95/EC requirements. Safety certifications include TUV and UL standards, ensuring optimal performance in controlled data center environments. Operating temperature range of 0-70°C (32-158°F) accommodates standard data center conditions. **Dimensions & Shipping:** Compact 12x12x2mm form factor integrates cleanly into cable management systems. Qualified for standard Ethernet cable classification (Harmonization Code 8544.42.9090), this solution ships with free standard shipping on orders exceeding $99 from regional distribution centers in California and South Carolina. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty with custom brand programming available for OEM partners and resellers. This cable represents an excellent value for organizations requiring certified, high-performance 400G breakout connectivity solutions.