Neutrally Buoyant ROV Cable CAT5 CAT6 Underwater ROV Umbilical Tether with Power and Ethernet Properties Extreme ruggedness, yet flexible water-blocked construction. Designed for underwater use with high-speed network data, video, and sensor equipment. Cables can be used for bottom-laid, vertical deployment, winch systems, and ROV applications. Custom variations of these listed cables can be supplied with added breaking strength,, additional jackets, or neutrally buoyant constructions.