AscentOptics’ 400G QSFP-DD Breakout AOC (Active Optical Cable) assemblies include 400G QSFP-DD to 2x 200G QSFP56 breakout AOC and 400G QSFP-DD to 4x 100G QSFP56 breakout AOC. The module integrates eight parallel lanes on 400G end and fan-out to four parallel lanes on each 200G end or two parallel lanes on each 100G end. Each lane operate 53.125Gb/ps PAM4 modulation signal. These 400G parallel breakout Active Optical Cable (AOC) assemblies transmit parallel 8x 50G PAM4 signals over multi-mode fiber (MMF) cables up to 100m. Compliant with QSFP-DD/SFP MSA and CMIS 4.0.they are designed with high performance, high density and low power, which are suitable for short range interconnection for data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications.