100ft Underwater Ethernet Cable Cat6 PoE++ for ROVs, Cameras, and Marine Systems
The DNC-1020 is a professional 100ft (30m) underwater Ethernet Cat6 PoE++ cable designed to transmit high-speed data and power between a surface system and underwater equipment. It is ideal for compact ROV systems, underwater cameras, inspection equipment, marine research, live streaming, and remote camera control applications.
This underwater Ethernet cable supports Cat6 data transmission up to 1 Gbps and is compatible with PoE, PoE+, and PoE++ systems when used with the proper power source, camera, bulkhead connector, and underwater equipment.
The DNC-1020 is a shorter and easier-to-handle alternative to the DNC-1044 300ft underwater Ethernet Cat6 cable . It is a strong choice when 100ft is enough and fast deployment matters.
Key Features
- 100ft (30m) underwater Ethernet Cat6 cable for compact and mid-range underwater systems
- Supports PoE / PoE+ / PoE++ for power and data over one cable
- Data speed up to 1 Gbps for professional underwater Ethernet communication
- Waterproof connector system for underwater camera and ROV applications
- Assembled in USA
- Designed for ROVs, underwater cameras, inspections, live streaming, and marine electronics
- Compatible with Dive And See underwater Ethernet bulkhead connectors
Typical System Setup
A typical underwater Ethernet system uses the DNC-1020 cable to connect the surface side to an underwater camera, ROV, or subsea device through a compatible bulkhead connector.
Surface laptop / PoE switch → DNC-1020 underwater Ethernet Cat6 cable → underwater bulkhead connector → underwater camera or subsea device

Compatible Bulkhead Connectors
The DNC-1020 is compatible with Dive And See underwater Ethernet bulkhead connectors. These connectors are sold separately and allow the cable to be integrated into underwater housings, ROV systems, and subsea camera installations.
- DNC-2025 - Underwater Ethernet Cat6 bulkhead connector for 16mm port
- DNC-2071 - Underwater Ethernet Cat6 short-thread bulkhead connector
- DNC-2084-L - M16x1 long-thread swivel-style underwater Ethernet Cat6 bulkhead connector
- DNC-2132 - M24 elbow underwater Ethernet Cat6 bulkhead connector
- DNC-2082 - 7/16-20 underwater Ethernet Cat6 bulkhead connector
Technical Specifications
| Model | DNC-1020 |
| SKU | DNC-1020-L-100 |
| Cable Type | Underwater Ethernet Cat6 cable |
| Length | 100ft / 30m |
| Ethernet Standard | Cat6 |
| Data Speed | Up to 1 Gbps |
| PoE Support | PoE / PoE+ / PoE++ |
| Primary Use | ROV, underwater camera, live streaming, inspection, and marine Ethernet systems |
| Assembly | Assembled in USA |
Applications
- Underwater camera systems
- ROV and subsea robotics
- Marine research and observation
- Industrial underwater inspection
- Security and monitoring systems
- Live streaming from underwater cameras
- Remote camera control and IP camera communication
Why Use a 100ft Underwater Ethernet Cable?
The DNC-1020 is designed for systems where a 300ft cable is not necessary. A 100ft cable is lighter, easier to deploy, easier to manage on a boat or at a test tank, and well suited for compact underwater camera and ROV work.
For longer deployments, Dive And See also offers the DNC-1044 300ft underwater Ethernet Cat6 PoE++ cable .
Why Use PoE Underwater?
Power over Ethernet allows data and power to travel through a single cable. This can simplify underwater system design, reduce the number of separate cables, and make compact ROV and underwater camera systems cleaner and easier to build.
Professional Underwater Ethernet System
The DNC-1020 is not a generic waterproof RJ45 cable. It is part of the Dive And See underwater Ethernet system, designed for professional subsea communication, camera control, inspection, and marine video workflows.

Custom Options
Custom cable lengths, connector types, and underwater Ethernet configurations are available upon request. Contact Dive And See if your system requires a different length, connector style, or complete underwater Ethernet solution.
Important Tightening Warning
Before submerging the system, verify that all underwater connectors are fully tightened by hand. Do not use tools. Improper sealing may result in water ingress and equipment damage.
Frequently Asked Questions
Can the DNC-1020 provide power and data at the same time?
Yes. The DNC-1020 supports PoE, PoE+, and PoE++ systems, allowing power and data to travel through one underwater Cat6 cable when used with compatible equipment.
What is the maximum data speed?
The DNC-1020 supports data speeds up to 1 Gbps based on the Cat6 Ethernet standard.
Is this cable suitable for underwater camera systems?
Yes. The DNC-1020 is designed for underwater cameras, ROVs, inspection systems, live streaming, and remote control applications.
Which Dive And See bulkhead connectors are compatible?
The DNC-1020 is compatible with Dive And See underwater Ethernet bulkhead connectors, including DNC-2025, DNC-2071, DNC-2084, DNC-2084-L, DNC-2082, and DNC-2132, depending on your housing port and thread requirement.
Should I choose DNC-1020 or DNC-1044?
Choose the DNC-1020 when you need a shorter 100ft underwater Ethernet cable that is easier to deploy. Choose the DNC-1044 when your project requires a longer 300ft underwater Ethernet cable.
Can Dive And See make a custom cable?
Yes. Custom lengths and connector configurations are available for underwater Ethernet systems.