The JBX03190 30-meter Cisco-compatible 400G QSFP-DD active optical cable represents the pinnacle of high-speed data center connectivity. Designed as a drop-in replacement for Cisco's QDD-4X100G-AOC30M, this cable bridges the gap between next-generation 400G infrastructure and existing 100G/400G network endpoints. **Technical Specifications:** This QSFP-DD to 4x QSFP28 breakout cable features 16 strands of OM3 50/125 multimode fiber delivering 400GBASE-SR4.2 performance. The 30-meter length provides extended reach capabilities ideal for data center fabrics, campus interconnects, and co-location environments. The cable meets IEEE 802.3bs standards and QSFP-DD MSA specifications, ensuring full interoperability with certified equipment. **Construction Quality:** Manufactured with precision-engineered fiber and durable plastic jacketing, the cable incorporates low-smoke, zero-halogen (LSZH) riser-rated (OFNR) materials. This construction minimizes fire hazard and smoke emissions in plenum environments while maintaining signal integrity over extended distances. The 12mm diameter provides excellent space efficiency in crowded patch panels. **Compliance & Safety:** Fully RoHS and ELV compliant, this cable meets stringent environmental regulations. It carries Class 1 Laser safety certification and has been validated by TUV and UL/FDA to 21CFR 1040.10 standards, ensuring safe operation in enterprise environments. **Applications:** Ideal for cloud data centers, enterprise networks, content delivery networks, and high-frequency trading environments where reliable, high-speed connectivity is critical. The breakout design allows efficient fan-out of 400G links to multiple 100G systems. **Warranty & Support:** Backed by a 90-day limited warranty with free standard shipping on orders exceeding $99. Custom brand programming is available for large-scale deployments. **Temperature Performance:** Operates reliably across 0-70°C, supporting diverse environmental conditions from cooled data center facilities to standard network closets.