The SO-QSFPDD-AOCxxM-4 is an Active Optical Cable (AOC) solution for short-range multi-lane data communication and interconnect applications. The solution consists of two QSFP-DD transceivers connected via an OM4 MultiMode optical cable of different lengths for 400Gbps Ethernet. Shenzhen REALSEA Optical Technology Co. is a national high-tech enterprise founded in 2013, focusing on the R&D, manufacturing, and global sales of high-speed optical interconnection products.