NADDOD's 400G Breakout AOC compatible with QSFP-DD to 4x100G QSFP56 Breakout Active Optical Cable operates over Multi-Mode Fiber. It is compliant with QSFP-DD and QSFP56 MSA standards, providing a connection of a 400Gb/s QSFP-DD port on one end and to four 100Gb/s QSFP56 ports on the other end and is suitable for quick and simple connections within racks and across adjacent racks.