The JBX03188 25-meter 400G QSFP-DD active optical breakout cable represents a cutting-edge solution for modern data center architecture. As a Cisco QDD-4X100G-AOC25M equivalent, this AOC enables seamless integration into existing enterprise networks while supporting next-generation bandwidth requirements. **Technical Specifications:** This cable features a single QSFP-DD port that breaks out into four QSFP28 ports, each delivering 100GB throughput for a combined 400GB interface. The 16-strand construction utilizes OM3 50/125 multimode fiber, optimized for short-to-medium distance runs while maintaining exceptional signal clarity. At 25 meters, this length accommodates large data center layouts without performance degradation. **Superior Construction & Safety:** The LSZH (Low Smoke Zero Halogen) OFNR (Optical Fiber Non-Conductive Riser) rated jacket exceeds industry safety standards, releasing minimal smoke and no corrosive halogen gases during combustion. This construction is mandatory in many jurisdictions and hospitals, making it the responsible choice for any installation. The plastic-jacketed design provides durability against physical stress while maintaining flexibility for cable management. **Performance & Reliability:** Qualified to IEEE 802.3bs and QSFP-DD MSA specifications, this AOC guarantees compatibility with leading networking equipment. Active electronics embedded within the cable intelligently adapt to environmental conditions, ensuring reliable 400GB transmission regardless of temperature fluctuations (0-70°C operating range). Class 1 laser certification confirms safety for network environments. **Ideal Applications:** - High-speed data center interconnects - Cloud infrastructure upgrades - Enterprise campus backbone networks - Storage area network (SAN) deployments - Server-to-switch connectivity **Value Proposition:** With a 90-day limited warranty, RoHS/ELV compliance, and availability from US distribution centers (Danville, CA and Beaufort, SC), this cable combines reliability with accessibility. Custom brand programming is available for OEM requirements. Free standard shipping on orders exceeding $99 reduces total cost of ownership. **Why Choose This AOC:** Unlike passive fiber cables, active optical technology eliminates electrical noise interference and supports longer distances without signal degradation. The breakout configuration provides exceptional flexibility, allowing 400G ports to cascade into multiple 100G connections when needed. Whether expanding existing infrastructure or building new data paths, this Cisco-compatible solution delivers enterprise performance at competitive pricing.