Connectors and splices (Cable Termination Adapters, CTAs) are critical components in the extension cable assemblies as these are classic failure points in ocean systems. Several types of connectors will be necessary in this system; some will be combined with their cables at the factory, others on board ships in the field. Some will need to be wet-mateable via ROVs to avoid excessive weight and volume and prevent connection errors. Connectors will be made of compatible materials to handle the interface with different metals under the water surface. Connectors for each system have been carefully evaluated. In general, there are three major types of connectors: Wet-Mate Electrical Connectors, Wet-Mate Hybrid Connectors, and Dry-Mate Electrical Connectors.