1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Magnadyne WC-USBHD-B Wall Mount USB-A Charging Port and HDMI Pass Through. This versatile 12V solution is designed for RV and automotive spaces, offering multiple connection options including two USB-A ports and one HDMI pass-through. The wall plate ensures a clean, organized charging and connectivity station. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Safety Information
- Power Source: This unit is designed for 12V DC input. Ensure your power source matches this requirement to prevent damage to the unit or connected devices.
- Wiring: Incorrect wiring can cause electrical hazards. If you are unsure about the wiring process, consult a qualified technician.
- Environment: Install the unit in a dry location, away from direct moisture or extreme temperatures.
- Ventilation: Ensure adequate ventilation around the unit to prevent overheating.
- Modifications: Do not attempt to modify or disassemble the unit. This will void the warranty and may cause damage or injury.
3. Package Contents
Verify that all items are present in the package:
- Wall Plate
- Charging Ports (USB-A and HDMI module)
4. Product Features
- Versatile Connectivity: Features two USB-A ports for charging and one HDMI pass-through for comprehensive device support.
- Mounting Options: Designed for clean, professional wall installation in RVs and automotive applications.
- Power Delivery: USB-A ports provide 5V/2A output for simultaneous charging of multiple devices.
- Space-Saving Design: Integrated wall mount installation provides an organized charging solution while maintaining easy access to all ports.
5. Setup and Installation
Follow these steps for proper installation of your Magnadyne WC-USBHD-B unit:
- Choose Location: Select a suitable wall location in your RV or vehicle that allows for easy access to wiring and provides sufficient space for the unit. Ensure the surface is flat and stable.
- Prepare Opening: Create an opening in the wall suitable for a standard single-gang wall plate. If replacing an existing outlet, ensure the opening is compatible.
- Wiring:
- Connect the red wire from the unit to a fused 12V DC positive (+) power source.
- Connect the black wire from the unit to a 12V DC negative (-) or ground connection.
- Ensure all connections are secure and properly insulated.
Refer to the image below for a visual guide on the wiring connections.

Figure 1: Rear view of the Magnadyne WC-USBHD-B module with wiring. The red wire connects to 12V DC positive, and the black wire connects to ground.
- Mount the Module: Insert the USB/HDMI module into the wall opening. Secure it using the provided screws or mounting clips, ensuring it is flush with the wall surface.
- Attach Wall Plate: Place the decorative wall plate over the mounted module and secure it with the two screws provided.
The completed installation should resemble the front view shown below.

Figure 2: Front view of the Magnadyne WC-USBHD-B wall plate, showing the two USB-A charging ports and the HDMI pass-through port.
6. Operating Instructions
Once installed, the Magnadyne WC-USBHD-B is ready for use:
- USB-A Charging: Connect your USB-A compatible devices (e.g., smartphones, tablets, MP3 players) to the USB-A ports for charging. The ports provide 5V/2A output.
- HDMI Pass-Through: Connect an HDMI cable from your source device (e.g., DVD player, game console) to the HDMI input on the rear of the unit, and another HDMI cable from the front HDMI port to your display (e.g., TV, monitor). This allows for seamless video and audio signal transmission.
The side view below illustrates the HDMI port location.

Figure 3: Side view of the Magnadyne WC-USBHD-B module, highlighting the HDMI pass-through port.
7. Maintenance
The Magnadyne WC-USBHD-B requires minimal maintenance:
- Cleaning: Use a soft, dry cloth to wipe the surface of the unit. Do not use abrasive cleaners or solvents, as they may damage the finish.
- Inspection: Periodically check the wiring connections to ensure they remain secure.
- Port Care: Keep the USB and HDMI ports free from dust and debris.
8. Troubleshooting
If you encounter issues with your unit, refer to the following troubleshooting guide:
- No Power to USB Ports:
- Check the 12V DC power connection. Ensure the red wire is connected to positive and the black wire to ground.
- Verify that the 12V power source is active and providing power.
- Check the fuse in the 12V power line. Replace if blown.
- HDMI Signal Issues (No Video/Audio):
- Ensure both HDMI cables (source to unit, unit to display) are securely connected.
- Test the HDMI cables with another device to confirm they are functional.
- Verify that your source device and display are powered on and correctly configured for HDMI input/output.
- Device Not Charging or Charging Slowly:
- Ensure your device is compatible with USB-A charging.
- Try a different USB cable.
- The unit provides 2A per port. Some devices requiring higher amperage (e.g., certain tablets) may charge slower.
9. Specifications
| Model Number | WC-USBHD-B |
| Brand | Magnadyne |
| Input Voltage | 12 Volts DC |
| Output Voltage (USB) | 5 Volts |
| Output Current (USB) | 2 Amps (per port) |
| Total USB Ports | 2 |
| HDMI | Pass-Through |
| Wattage | 10 watts |
| Connector Type | USB Type A, HDMI |
| Mounting Type | Wall Mount |
| Material | Plastic |
| Color | Black |
| Compatible Devices | ATV, Automotive, Campers, RV, Trucks |
| UPC | 783855988760 |
10. Warranty Information
This Magnadyne product is covered by a 1-Year Manufacturer's Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, abuse, misuse, natural disaster, or unauthorized modification. Please retain your proof of purchase for warranty claims.
11. Support
For technical assistance, warranty claims, or further information regarding your Magnadyne WC-USBHD-B, please contact Magnadyne customer support. Refer to the official Magnadyne website or your product packaging for the most current contact information.
