The JBX03193 represents a cutting-edge solution for modern data center infrastructure, specifically engineered to support the demanding requirements of 400G networking architectures. This QSFP-DD to 4x QSFP28 active optical breakout cable delivers exceptional performance while maintaining compatibility with existing Cisco equipment, including the original QDD-4X100G-AOC5M specification. **Technical Specifications & Performance:** This 5-meter cable utilizes 16 strands of OM3 50/125 multimode optical fiber, supporting 400GBASE-SR4.2 transmission standards. Operating across a 0-70°C temperature range, the cable maintains consistent performance in various data center environments. The LSZH (Low Smoke Zero Halogen) riser-rated jacketing ensures compliance with building codes and enhances safety in enclosed spaces. **Compliance & Certifications:** The cable meets extensive safety and regulatory requirements including IEEE 802.3bs, QSFP-DD MSA, and CMIS specifications. It carries Class 1 Laser certification, TUV approval, and UL/FDA compliance (21CFR 1040.10), demonstrating adherence to international safety standards and RoHS/ELV directives. **Ideal Applications:** This breakout cable excels in enterprise data centers, high-performance computing environments, and telecommunications infrastructure where 400G connectivity demands require flexible, four-channel distribution. The breakout design enables efficient space utilization in dense switch configurations. **Quality Assurance:** Manufactured in Vietnam and China with rigorous quality controls, the cable includes a 90-day limited warranty. Custom brand programming is available for integration into private-label solutions. **Shipping & Availability:** Enjoy free standard shipping on orders exceeding $99, with fulfillment from strategic U.S. locations in Danville, CA and Beaufort, SC, ensuring rapid delivery to customers nationwide.