The JBX03213 2-meter 400GBASE-SR8 QSFP-DD to 4x QSFP56 Active Optical Cable represents the ideal solution for modern high-density data center interconnect requirements. As a direct compatibility replacement for Cisco's QDD-4ZQ100G-AOC2M, this premium active optical cable eliminates complexity while delivering exceptional performance and reliability. **Key Technical Specifications:** This breakout AOC features cutting-edge 400GB transmission capabilities over OM3 50/125 multimode fiber with 16 individual fiber strands. The 2-meter length provides optimal reach for rack-to-rack and switch-to-switch connectivity without signal degradation. Qualified to IEEE 802.3cm and QSFP-DD MSA standards, the cable maintains full compliance with CMIS specifications for seamless device integration. **Superior Safety & Environmental Features:** The LSZH (Low Smoke Zero Halogen) OFNR-rated jacketing delivers exceptional fire safety performance while producing minimal toxic smoke in emergency situations. This riser-rated construction is engineered for building-to-building and plenum-adjacent installations. All components comply with RoHS Directive 2002/95/EC and carry multiple safety certifications including UL/FDA 21CFR 1040.10 and TUV approval. **Optimal Performance Range:** Designed for stable operation from 0°C to 70°C (32°F to 158°F), this cable maintains consistent performance across diverse data center environments. The plastic jacketing with integrated fiber protection ensures durability and longevity in demanding enterprise applications. **Ideal Applications:** Perfect for high-speed data center networks, cloud infrastructure, AI/ML clusters, and enterprise backbone connectivity. The 4x QSFP56 breakout configuration enables cost-effective network scaling and equipment flexibility. **Value & Support:** Shipped from multiple U.S. locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty and custom brand programming available for enterprise deployments. Manufactured in Vietnam and China under strict quality controls.