PDK81601-4*2*26AWG Buoyancy Cable

This product is a high-performance neutrally buoyant Ethernet tether cable specifically designed for underwater Remotely Operated Vehicles (ROVs), Autonomous Underwater Vehicles (AUVs), subsea sensors, marine robotics, and underwater communication systems. It integrates reliable high-speed data transmission with optional Power over Ethernet (PoE) capability, while maintaining precise neutral buoyancy in seawater and outstanding flexibility, corrosion resistance, and mechanical durability.

Unlike standard underwater cables that sink to the seabed and create drag, snagging, or entanglement hazards, this cable is engineered to remain suspended in the water column with zero net buoyancy. By matching its overall density to that of seawater through a specialized foam polyurethane (PUR) construction, the cable eliminates hydrodynamic lift or drag on the vehicle, significantly improving maneuverability, station-keeping performance, and operational range, especially in currents or deep-water deployments. The design reduces tether tension and cable fatigue, extending both the cable's lifespan and the underwater vehicle's effective mission duration.

Ideal for:

Observation-class ROVs, mini-ROVs, and underwater drones requiring zero-drag tether

AUVs and marine robotics for subsea inspection, mapping, and surveillance

Underwater camera systems and live video streaming (supports Gigabit Ethernet and PoE)

Subsea sensor arrays, data acquisition systems, and oceanographic monitoring stations

Sonar systems and towed arrays requiring precise depth alignment and vibration damping

Shallow‑water monitoring, aquarium systems, and swimming pool cleaning robots

Military and defense applications (mine detection, naval surveillance, harbor security)

Marine research and exploration equipment, hydrographic survey systems

This cable simultaneously meets the demanding requirements of underwater equipment for high‑speed data transmission, real‑time video, sensor telemetry, and control signals, while the neutral buoyancy design eliminates the need for additional flotation devices or complex tether management systems. The lightweight, flexible construction reduces drag on the vehicle, prevents snagging on seabed obstacles, and ensures smooth deployment and retrieval from winch systems.

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