DNC-GP28 Underwater SDI Live View Kit for GoPro Hero 13/12/11/10/9
The DNC-GP28 is a professional underwater SDI live view system for GoPro Hero 13, 12, 11, 10, and 9 cameras. It provides real-time 1080p60 SDI video output to the surface through a detachable 50m SDI + power cable, while the GoPro can continue recording high-resolution video internally.
This system is built for underwater inspection, live streaming, marine research, broadcast, aquaculture monitoring, documentary work, and professional video workflows where a reliable live surface feed is critical.
The GoPro housing is machined from marine-grade aluminum with hard anodizing and is depth-rated to 100m / 330ft. The system is powered from the surface with a 12V power supply, helping avoid battery changes during long underwater shoots.
Why SDI Instead of HDMI?
SDI is a professional video standard designed for reliable real-time video transmission over longer cable runs. For underwater live view systems, SDI is often simpler and more robust than HDMI because the signal is easier to route through long underwater cable assemblies and professional monitoring equipment.
The DNC-GP28 sends a clean 1080p60 SDI live video signal to the surface while the GoPro can continue recording high-resolution footage internally. This gives the operator real-time monitoring at the surface without giving up high-quality recording inside the camera.
Key Features
- Underwater SDI live view system for GoPro Hero 13/12/11/10/9
- 1080p60 SDI output for real-time surface monitoring
- 50m detachable SDI + power cable for professional underwater deployment
- Surface 12V power supply for long-duration operation
- GoPro can record internally up to 5K60, 4K120, or 2.7K240 depending on camera settings
- Marine-grade aluminum housing with hard anodized finish
- Depth rating: 100m / 330ft
- Ideal for inspection, live streaming, broadcast, research, aquaculture, and documentary production
Typical System Setup
GoPro Hero camera inside DNC-GP28 underwater housing → detachable 50m SDI + power cable → surface power supply → SDI monitor, recorder, switcher, streaming encoder, or control station
Ideal Applications
- Underwater live streaming: send a stable SDI feed to the surface for streaming or event production
- Marine and boat inspections: inspect hulls, propellers, docks, tanks, and underwater infrastructure
- Broadcast and production: use GoPro image capture with professional SDI surface monitoring
- Research and observation: monitor underwater behavior, aquaculture systems, and marine life
- Security and surveillance: integrate into monitoring systems for ports, vessels, and underwater assets
- Documentary work: record high-resolution GoPro footage while monitoring live from the surface
Set Includes
- Underwater housing for GoPro Hero 13/12/11/10/9
- 50m detachable SDI and power combo cable
- 1 inch ball mount with 1/4-20 thread
- 12V universal power supply, 110-240V AC input
Technical Specifications
| Model | DNC-GP28 |
| Compatible Cameras | GoPro Hero 13, 12, 11, 10, 9 |
| Live Video Output | 1080p60 SDI |
| Internal GoPro Recording | Up to 5K60, 4K120, or 2.7K240 depending on GoPro model and settings |
| Cable Length | 50m detachable SDI + power cable |
| Power Input | 12V from surface power supply |
| Housing Depth Rating | 100m / 330ft |
| Housing Material | Marine-grade aluminum, hard anodized |
Professional SDI Surface Monitoring
The DNC-GP28 is designed for operators who need to see what the GoPro sees while the camera is underwater. The SDI output can be connected to professional monitors, recorders, switchers, converters, or streaming encoders at the surface.
This makes the system useful for underwater events, inspections, scientific observation, commercial video production, and marine work where a dependable live view is required.
Compatible GoPro Media Mod
The system is designed around the GoPro Hero 13/12/11/10/9 live output workflow and compatible GoPro media accessories required for HDMI-to-SDI integration inside the housing.

Optional Lens and Filter Accessories
Lens and filter accessories can help adapt the GoPro for different underwater shooting conditions, including close-up work and light control.

ND and CPL Filters for GoPro Hero 13/12/11/10/9
ND8, ND16, ND32, and CPL filter options can be used for better exposure control and image management in bright underwater or surface lighting conditions.

Housing Mounting Points
The underwater housing includes mounting points for integration with ball mounts, brackets, inspection rigs, or custom underwater camera frames.

Outline Dimensions of the GoPro Housing
Measuring units: inch.

Frequently Asked Questions
Why use SDI instead of HDMI underwater?
SDI is commonly used in professional video systems because it is reliable for longer cable runs and works well with broadcast monitors, recorders, switchers, and converters. For this type of underwater live view system, SDI is often simpler and more dependable than trying to extend HDMI over a long underwater cable.
Can the GoPro still record internally?
Yes. The system provides SDI live view to the surface while the GoPro can record high-resolution footage internally to its memory card.
Does this system power the GoPro from the surface?
Yes. The DNC-GP28 uses a surface 12V power supply through the detachable 50m SDI + power cable, helping support long-duration operation.
What is the depth rating?
The housing is rated to 100m / 330ft.
What is this system best for?
It is best for underwater live view, inspection, marine research, live streaming, broadcast, aquaculture monitoring, and professional GoPro-based underwater video workflows.