DNC-2071 Underwater Ethernet Cat6 M16x1 Short-Thread Bulkhead Connector
DNC-2071 is a professional underwater Ethernet Cat6 bulkhead connector designed for compatible M16x1 short-thread underwater housing ports.
It provides a sealed Gigabit Ethernet pass-through for underwater cameras, marine instruments, OEM housings, monitoring systems, and other professional underwater equipment that requires reliable network communication between submerged equipment and the surface.
Assembled in the USA by Dive And See. The DNC-2071 is designed as part of a complete underwater Ethernet connection and can be supplied with compatible Dive And See underwater Ethernet cables, custom internal pigtails, and application-specific configurations.
Key Benefits
- Professional underwater Cat6 Ethernet bulkhead connector
- M16x1 short-thread mounting interface
- Designed for compatible underwater camera housings and marine enclosures
- Supports Gigabit Ethernet data transmission up to 1 Gbps
- T-568B standard Ethernet wiring
- 24 AWG stranded copper conductors
- RJ45 internal Ethernet connection
- Built-in water block protection
- Marine-grade hard-anodized aluminum construction
- Depth rated up to 100 m / 328 ft
- Custom internal pigtail lengths available
- Compatible mating underwater Ethernet cables available
- Prototype and OEM quantities welcome
Designed for Underwater System Integration
Unlike standard outdoor waterproof RJ45 connectors, the DNC-2071 is intended for integration directly into underwater housings and marine equipment.
The short-thread M16x1 configuration is useful when installation space is limited and the enclosure design requires a compact bulkhead interface.
For OEM and engineering projects, Dive And See can help configure the complete underwater Ethernet connection including the bulkhead connector, internal Ethernet pigtail, underwater mating cable, surface RJ45 termination, and custom cable length.
Technical Specifications
| Model | DNC-2071 |
| Product Type | Underwater Ethernet Cat6 bulkhead connector |
| Mounting Thread | M16x1 short thread |
| Ethernet Standard | Cat6 Ethernet |
| Maximum Data Speed | Up to 1 Gbps Gigabit Ethernet |
| Wiring Standard | T-568B |
| Conductor Gauge | 24 AWG |
| Internal Interface | RJ45 Ethernet connection |
| Contacts | Gold-plated brass contacts |
| Material | Marine-grade aluminum with hard anodizing |
| Water Protection | Built-in water block |
| Depth Rating | Up to 100 m / 328 ft |
| Custom Internal Pigtail | Available by request |
| Origin | Assembled in the USA by Dive And See |
Engineering Resources
Outline Drawing
The dimensional drawing below can be used to verify mounting thread, installation depth, and enclosure clearance before installation.

3D Integration Model (STEP)
A simplified 3D STEP integration model is available for qualified engineering and OEM projects.
The model is intended for enclosure layout, mounting clearance, mating connector clearance, and system integration. Internal construction and proprietary manufacturing features are intentionally omitted.
Request 3D STEP Integration Model
When submitting your request, please include “DNC-2071 STEP Model” in the Comments / Questions field.
Please also include your company name and a brief description of your application. If available, provide your enclosure wall thickness and available internal clearance so we can help verify the correct connector configuration for your design.
Product Images

Compatible Dive And See Underwater Ethernet Cables
The DNC-2071 can be used with Dive And See underwater Ethernet cable assemblies to create a complete underwater-to-surface or underwater-to-underwater network connection.
- DNC-1020 — 100 ft / 30 m underwater Cat6 Ethernet cable
- DNC-1044 — 300 ft / approximately 90 m underwater Cat6 Ethernet cable
- DNC-1101 — Underwater-to-underwater Cat6 Ethernet cable with waterproof connectors on both ends
Water Block Protection
The DNC-2071 includes a built-in water block designed to reduce the possibility of water traveling through the internal cable into the underwater enclosure if the external cable or connector is damaged.
The water block also helps maintain housing vacuum when the connector is used as part of a compatible vacuum-tested underwater housing system.
Custom Engineering Options
Dive And See can modify the DNC-2071 configuration for prototype, OEM, and custom underwater equipment projects.
- Custom internal Ethernet pigtail length
- Custom mating underwater cable length
- Underwater-to-surface Ethernet assemblies
- Underwater-to-underwater Ethernet assemblies
- RJ45 surface termination
- Custom connector combinations
- Prototype quantities
- Small production runs
Tell us what you need to connect. We can help build the complete underwater Ethernet connection between your equipment and the surface.
Lead Time
Standard Lead Time: Typically 6–8 business days.
Expedited 3-Day Assembly: Available for many Ethernet configurations for an additional 15%, subject to production availability.
Please contact Dive And See before ordering if expedited assembly is required.
Applications
- Underwater IP camera systems
- PoE camera systems
- Underwater camera housings with Ethernet communication
- Marine monitoring equipment
- Scientific and research instrumentation
- OEM underwater electronics
- Remote camera control
- Underwater inspection systems
- Custom marine enclosures
- Nikon Z9 Ethernet integration
- Z CAM Ethernet integration
- General underwater Gigabit Ethernet communication
Prototype to Production
DNC-2071 can be used for one-off prototypes, engineering validation systems, and repeat production builds.
For customers developing underwater equipment, Dive And See can help maintain consistent bulkhead, pigtail, and mating cable configurations as the project moves from prototype into production.
Frequently Asked Questions
What is the DNC-2071 used for?
DNC-2071 is used to pass Cat6 Ethernet through a compatible M16x1 underwater housing or marine enclosure while maintaining a sealed underwater interface.
Does DNC-2071 support Gigabit Ethernet?
Yes. DNC-2071 supports Ethernet data transmission up to 1 Gbps when used with compatible Ethernet equipment and cable assemblies.
What mounting thread does DNC-2071 use?
DNC-2071 uses an M16x1 short-thread mounting interface.
Is DNC-2071 compatible with every 16 mm housing port?
No. Port diameter alone does not determine compatibility. Thread type, wall thickness, available installation depth, sealing surface, and internal clearance should be verified before installation.
If you provide your enclosure wall thickness and available internal clearance, Dive And See can help confirm the appropriate connector configuration.
What is the depth rating?
DNC-2071 is rated for applications up to 100 m / 328 ft.
Does the connector include water block protection?
Yes. DNC-2071 includes a built-in water block designed to help protect the enclosure if the external cable or mating connection is damaged.
Can I request a STEP model?
Yes. A simplified STEP integration model is available for qualified engineering and OEM projects. The model is intended for enclosure design and clearance verification and does not include proprietary internal manufacturing geometry.
Can the internal Ethernet cable length be customized?
Yes. Custom internal pigtail lengths are available by request.
Can Dive And See provide the mating underwater Ethernet cable?
Yes. Dive And See offers compatible underwater Ethernet cable assemblies including underwater-to-surface and underwater-to-underwater configurations.
Can custom cable lengths be ordered?
Yes. Custom underwater Ethernet cable lengths can be supplied for applications up to 100 m, depending on the required configuration and Ethernet performance requirements.
Is expedited assembly available?
Yes. Expedited 3-business-day assembly is available for many Ethernet configurations for an additional 15%, subject to production availability.
Need Help With Integration?
If you are designing a new underwater housing or integrating Ethernet into an existing enclosure, send us your mounting thread, enclosure wall thickness, available internal clearance, required cable length, and surface termination.
We can help configure the complete underwater Ethernet connection for your project.