The JBX05947 0.5m Cisco QSFP56 to 4x SFP56 200GBASE-CR4 breakout DAC cable represents enterprise-grade networking infrastructure designed for organizations requiring high-capacity, low-latency connectivity in modern data centers. **Key Features & Specifications:** This passive direct-attach copper cable utilizes premium 30AWG twinax copper construction paired with durable plastic jacketing to ensure signal fidelity and longevity. The QSFP56 form factor provides backward compatibility with existing Cisco infrastructure, while the four integrated SFP56 ports enable flexible port breakout configurations—ideal for maximum network density without sacrificing performance. **Performance & Compatibility:** Qualified to IEEE 802.3cd specifications, this cable supports full 200GBASE-CR4 throughput with zero packet loss over its 0.5-meter reach. The passive design eliminates power requirements and heat dissipation concerns, making it ideal for high-density switch deployments. Direct compatibility with Cisco's QSFP-4S50-CU1M specification ensures seamless integration into existing networks. **Compliance & Safety:** RoHS and ELV compliant with TUV and UL certifications, this cable meets EU Directive 2002/95/EC standards. Manufacturing in Vietnam and China ensures quality control through trusted supply chains. **Applications:** Perfect for data center spine-leaf architectures, storage area networks (SANs), high-performance computing clusters, and enterprise switch interconnections. The 0.5-meter length suits rack-to-rack deployments within cabinet rows. **Included Benefits:** - Free standard shipping on qualifying orders - 90-day limited warranty - Custom brand programming available - Ships from California and South Carolina locations Invest in proven network infrastructure with this Cisco-compatible DAC cable for reliable, future-proof data center connectivity.