Negative/Neutral/Positive Buoyancy Tethers & Umbilicals for Remotely Operated Vehicles (ROVs) Data pairs: Shielded twisted pairs with aluminum/mylar shield, drain wire and shield isolation.Pairs are designed for RS232, RS422, RS485 CAT5E CAT6 CAT7 CAT8 signal rates Cable cores: Composite constructions with isolated shielded data pairs cabled with single power/control wires and interstices filled with thermoset waterblock Strength Layer: Light weight Kevlar fibers are designed into each cable construction to meet specific ROV intended use for maximum strength and longevity.Jacket Materials are chosen for optimal bonding, moisture and mechanical resistance. Each ROV cable is uniquely designed for specific ROV types using PE, TPE, PUR, and foam variations for flotation.