DNC-2025 Underwater Ethernet Cat6 Bulkhead Connector for 16mm Ports, Camera Housings, and Marine Systems
The DNC-2025 is a professional underwater Ethernet Cat6 bulkhead connector designed to pass high-speed LAN Ethernet through a 16mm housing port or M16x1 threaded port.
It is built for underwater IP cameras, security cameras, remote camera control, PoE camera systems, ROV camera setups, marine monitoring, and custom underwater housings that require reliable Gigabit Ethernet communication.
Assembled in the USA by Dive And See. The DNC-2025 is not a generic waterproof RJ45 coupler. It is a purpose-built underwater Ethernet bulkhead connector for professional underwater camera and marine network systems.
Quick Benefits
- Underwater Ethernet Cat6 bulkhead connector for 16mm ports
- Fits M16x1 threaded ports or 0.625 inch / 16mm housing openings
- Supports Gigabit Ethernet data transmission up to 1 Gbps
- Cat6 stranded copper cable with T-568B standard wiring
- RJ45 connectivity for universal Ethernet integration
- Built-in water block protection for underwater housing safety
- Marine-grade aluminum construction with hard anodizing
- Depth rated up to 160 meters / 240 PSI
- Designed for IP cameras, PoE systems, remote control, and underwater monitoring
- Custom cable lengths and connector configurations available
Why This Is Not a Regular Waterproof RJ45 Coupler
Many waterproof RJ45 connectors are designed for outdoor or industrial panel use. The DNC-2025 is designed for underwater camera housings, marine monitoring systems, ROV camera setups, and subsea electronics where sealing, water block protection, housing compatibility, and underwater reliability matter.
Technical Specifications
| Model | DNC-2025 |
| Product Type | Underwater Ethernet Cat6 bulkhead connector |
| Port Compatibility | 16mm opening / M16x1 threaded port |
| Ethernet Standard | Cat6 Ethernet |
| Data Speed | Up to 1 Gbps Gigabit Ethernet |
| Wiring | T-568B standard wiring |
| Conductor Gauge | 23 AWG |
| Connector Interface | RJ45 Ethernet connection |
| Contacts | Gold-plated brass contacts / 50-micron gold-plated RJ45 plugs |
| Depth Rating | Up to 160 meters / 240 PSI |
| Material | Marine-grade aluminum with hard anodizing |
| Water Protection | Built-in water block for housing vacuum protection |
| Origin | Assembled in the USA by Dive And See |
Product Images

Compatible Dive And See Ethernet Cables
- DNC-1044 — 300ft underwater Cat6 Ethernet PoE++ tether cable
- DNC-1020 — 100ft underwater Cat6 Ethernet PoE++ cable
- DNC-1101 — Underwater LAN Ethernet Cat6 cable with waterproof male connectors
- DNC-1102 — 1m underwater Ethernet Cat6 cable with waterproof connectors
Water Block Protection
The DNC-2025 includes a built-in water block, which helps maintain vacuum inside the underwater housing when used with an AirLock Vacuum System. It also helps protect the housing from water ingress in case of cable or connector damage.
Custom Options
Custom cable lengths, connector styles, and underwater Ethernet configurations are available by request for camera housings, IP cameras, ROVs, inspection systems, marine research, and subsea communication projects.
Applications
- Underwater IP camera systems
- Security cameras using PoE / Power over Ethernet
- Remote camera control and LANC command transmission
- ROV camera and inspection systems
- Marine monitoring systems
- Research and underwater observation systems
- Custom underwater housings with 16mm or M16x1 ports
- General underwater Gigabit Ethernet data transmission
Frequently Asked Questions (FAQ)
What is the DNC-2025 used for?
The DNC-2025 is used to pass Cat6 Ethernet through a 16mm underwater housing port or M16x1 threaded port for IP cameras, remote camera control, PoE systems, ROV camera systems, and marine monitoring applications.
Does the DNC-2025 support Gigabit Ethernet?
Yes. The DNC-2025 supports Ethernet data transmission up to 1 Gbps.
What housing port does this connector fit?
The DNC-2025 fits M16x1 threaded ports or 0.625 inch / 16mm openings on compatible underwater housings.
Does this connector include water block protection?
Yes. The DNC-2025 includes a built-in water block to help maintain housing vacuum and reduce risk of water ingress.
Is this connector compatible with DNC-1044?
Yes. The DNC-2025 is compatible with Dive And See underwater Ethernet cable systems, including the DNC-1044 300ft underwater Cat6 Ethernet PoE++ tether cable.
Is this a regular waterproof RJ45 coupler?
No. The DNC-2025 is an underwater Ethernet Cat6 bulkhead connector designed for underwater housings, marine camera systems, and professional subsea applications.
What is the depth rating?
The DNC-2025 is rated up to 160 meters / 240 PSI.
Can custom cable lengths be ordered?
Yes. Custom cable lengths and connector configurations are available by request.
Additional Product Image

Outline Drawing
For M16x1 threaded ports and 16mm underwater housing openings.
