The Forara 400G QSFP-DD Active Optical Cable (AOC) solutions provide a high-speed, cost-effective, power-efficient and virtually error-free connectivity over multimode fiber (MMF) cables in a nominal wavelength of 850nm for short distance interconnects within racks and across adjacent racks. With features of compact, light-weight, low-latency and low-power, it enables higher port bandwidth, density and configurability at a low cost and reduced power requirement in the storage, data centers and high-performance computing connectivity. The Low Smoke Zero Halogen (LSZH) design fully complies with the European Union Restriction of Hazardous Substances (RoHS) directive and similar North American safety and environmental standards.