The JBX05940 is a premium-grade 200GBASE-CR4 QSFP56 to 4x SFP56 direct attach copper (DAC) breakout cable, purpose-built for demanding data center and enterprise network environments. Engineered as a direct replacement for HPE part number R6F27A-2M, this 2-meter passive copper cable delivers exceptional performance for high-speed network deployments. **Technical Specifications:** This breakout DAC features a QSFP56 connector on one end, splitting into four individual SFP56 connectors, enabling flexible port aggregation and network topology optimization. The 26AWG twinax copper construction ensures superior signal integrity and electrical performance across all 200GB data rate channels. Fully qualified to IEEE 802.3cd and QSFP56 MSA standards, this cable meets rigorous industry specifications. **Performance & Reliability:** As a passive solution, the JBX05940 requires no power, eliminating active cooling requirements and reducing operational costs. The copper construction provides excellent thermal characteristics, operating reliably across the 0-70°C temperature range. RoHS and ELV compliance ensures environmental responsibility, while TUV and UL certifications guarantee safety standards adherence. **Applications & Benefits:** Ideal for data center switching infrastructure, storage area networks, and high-performance computing clusters. The breakout design enables efficient port expansion without dedicated hardware modules. This passive DAC solution outperforms alternatives by eliminating latency, reducing power consumption, and providing superior reliability for mission-critical applications. **Quality Assurance:** Every cable undergoes rigorous testing to ensure performance consistency. Includes 90-day limited warranty and ships from convenient US locations (Danville, CA or Beaufort, SC) with free standard shipping on qualifying orders. Custom brand programming available for enterprise deployments. **Why Choose This Cable:** Offering cost-effective 200GB connectivity without active electronics, this HPE-compatible breakout DAC is the intelligent choice for network administrators seeking reliable, high-performance solutions with minimal total cost of ownership.