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Underwater Ethernet Cable | Subsea LAN Cable for ROV and Marine Systems

Published on:2026-05-24 Click:21

Underwater Ethernet Cable | Subsea LAN Cable for ROV and Marine Systems

Shielded underwater Ethernet cable for ROV and subsea LAN networks. PUR jacket, seawater resistant, supports 100/1000 Mbps. Custom lengths and conductor specs available.

Product introduction

Underwater Ethernet Cable for ROV and Subsea LAN Networks

Our Underwater Ethernet Cable provides reliable 100/1000 Mbps network connectivity for ROV systems, subsea instruments, and marine monitoring networks. Built with shielded twisted pairs and a PUR outer jacket, this cable is engineered to maintain full Ethernet performance in seawater, at depth, and in high-flex tether applications.

Parameter Specification
Ethernet Standard Cat5e / Cat6 compatible
Data Rate 100 Mbps / 1000 Mbps
Jacket Material Polyurethane (PUR)
Voltage Rating 300V RMS
Temperature Range -30°C to +80°C
Depth Rating Up to 4,000 m
Shielding Per-pair foil + overall braid (F/UTP or S/FTP)
Conductor Custom AWG (22 / 24 / 26 AWG available)

Key Applications

  • ROV onboard Ethernet networks
  • Subsea camera, sonar and navigation Ethernet connections
  • Underwater instrument nodes
  • Port and harbour subsea CCTV networks
  • Offshore platform-to-seabed Ethernet links

Get a custom Ethernet cable specification: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.

Frequently Asked Questions

What is the maximum Ethernet run length underwater?

Standard Cat5e/Cat6 Ethernet is limited to 100 m per segment. For longer underwater cable runs, we recommend using a subsea Ethernet extender, or switching to our fibre optic hybrid cable which supports multi-kilometre runs without repeaters.

Is this cable compatible with subsea Ethernet switches?

Yes. This cable is compatible with all standard 802.3 Ethernet switches and equipment. The PUR jacket and shielded pairs ensure compatibility with both commercial and industrial-grade subsea Ethernet switches and multiplexers.

Underwater Ethernet cables

Nom. cable OD: 0.430'', 10.92 mm


Applications

  • Underwater cable assemblies for ROV, AUV and subsea vehicle power and signal delivery
  • Subsea sensor and instrument cabling requiring flexible, abrasion-resistant PUR jackets
  • Marine renewable energy cable connections, offshore platform and coastal installations
  • Underwater lighting, camera and video system cable assemblies with connector terminations
  • Custom umbilical cables for oceanographic research and temporary subsea deployments

Customization Options

  • Custom cable lengths from 1m to 1000m+ with specified conductor counts and gauges
  • Direct moulding termination to any ROV Connector series for complete cable assemblies
  • Neutral buoyancy options, Kevlar reinforcement and specialized jacket colors available
  • Certified cable tension, flex and pressure testing with full test documentation
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