Introduction
This manual provides essential information for the safe and effective use of your BestCH AC/DC Adapter. This power supply is designed to provide reliable power to compatible devices, specifically the Belkin F7D4501 ScreenCast DSA-12G-12. It features a wide input voltage range (100-240VAC, 50/60Hz) for worldwide use and incorporates multiple safety protections.
Important: Before use, please verify that your device's power requirements match the specifications of this adapter to ensure compatibility and prevent damage.
Package Contents
- BestCH AC/DC Adapter
Setup
- Inspect the Adapter: Before connecting, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Connect to Device: Insert the DC output connector of the adapter firmly into the power input port of your Belkin F7D4501 ScreenCast DSA-12G-12 device.
- Connect to Power Outlet: Plug the AC input prongs of the adapter into a standard wall power outlet (100-240VAC, 50/60Hz). Ensure the outlet is easily accessible.

Image: The BestCH AC/DC Adapter connected to a power strip, ready for use with a device (not shown connected to the adapter's output). This illustrates the typical setup of plugging the adapter into a power source.
Operating Instructions
Once properly connected, the adapter will supply power to your device. No further user interaction is typically required for basic operation. The adapter is designed for continuous use within its specified voltage and current limits.
- Ensure the adapter is placed in a well-ventilated area to prevent overheating.
- Avoid covering the adapter during operation.
- Do not expose the adapter to water or excessive moisture.
Maintenance and Storage
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Cable Management: To prolong the life of the cable, avoid sharp bends or kinks. Use the included hook and loop fastener for neat storage when not in use or for travel.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.

Image: The power cable of the adapter bundled with a reusable hook and loop fastener. This demonstrates proper cable management for storage and transport.
Troubleshooting
If your device is not receiving power, perform the following checks:
- Check Connections: Ensure both the AC plug is fully inserted into the wall outlet and the DC connector is securely plugged into your device.
- Verify Power Outlet: Test the wall outlet with another known working device to confirm it is supplying power.
- Inspect Cable: Check the adapter's cable for any visible damage, cuts, or frayed wires. If damaged, discontinue use.
- Device Compatibility: Reconfirm that your device (Belkin F7D4501 ScreenCast DSA-12G-12) is compatible with this adapter's voltage and current output.
If the issue persists after these steps, the adapter may require replacement. Do not attempt to repair the adapter yourself.
Specifications
| Input Voltage | 100-240 VAC, 50/60 Hz |
| Output Voltage/Current | Specific output details are not provided in the source data. Please refer to your device's original power supply or specifications for exact output requirements. |
| Compatibility | Belkin F7D4501 ScreenCast DSA-12G-12 |
| Protection Features | OVP (Over Voltage Protection), OCP (Over Current Protection), SCP (Short Circuit Protection) |
| Manufacturer | BestCH |
Note: Always confirm that the adapter's output specifications match your device's requirements before use.
Safety Information
- Do not disassemble or modify the adapter.
- Keep away from children and pets.
- Avoid extreme temperatures, humidity, and direct sunlight.
- Unplug the adapter during lightning storms or when unused for extended periods.
- Ensure proper ventilation to prevent overheating.
- This adapter is for indoor use only.
- Do not use if the adapter or cable is damaged.
Warranty and Support
Specific warranty details are not provided in this manual. For warranty information or technical support, please refer to the seller's policies or contact the retailer where the product was purchased.





