The JBX05003 400GBASE-CR8 QSFP-DD to 2x QSFP56 direct attach copper cable represents a cost-effective solution for modern data center networking. As a passive breakout DAC, it provides immediate 400GB to dual 200GB connectivity without requiring additional power or active components, reducing operational complexity and energy costs. **Technical Specifications:** This 1.5-meter cable features premium 30AWG twinax copper conductors with robust plastic jacketing, meeting ETC 400GBASE-CR8 standards and QSFP-DD MSA specifications. The design qualifies for CMIS compatibility while maintaining strict adherence to RoHS directive 2002/95/EC, ensuring compliance with global environmental regulations. **Compatibility & Performance:** Purpose-built for Juniper network equipment, the JBX05003 directly replaces OEM part number QDD-2X200G-1P5M. The passive breakout architecture supports simultaneous dual 200GB channel operation, enabling efficient port expansion without performance degradation. Operating across the full industrial temperature range of 0-70°C, this cable performs reliably in demanding data center environments. **Enterprise-Grade Quality:** Comprehensive safety certifications including RoHS, TUV, and UL compliance provide confidence in deployment. The 90-day limited warranty protects your investment, while the cable's robust construction ensures years of stable operation. Ships quickly from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. **Ideal Applications:** Perfect for enterprises consolidating network infrastructure, upgrading data center switching capacity, or requiring flexible high-speed interconnects. The 1.5-meter length accommodates typical rack configurations while the passive design minimizes cooling requirements and operational overhead. Custom brand programming is available for enterprise deployments requiring standardized cable identification.