1. Product Overview
The Onten HDMI to VGA Adapter is designed to convert digital HDMI signals from various devices to analog VGA signals for display on VGA-equipped monitors, TVs, or projectors. This compact and portable adapter also features a 3.5mm audio jack and a micro USB port for optional power, ensuring both video and audio synchronization.
Key Features:
- Supports audio and video synchronization via a 3.5mm audio jack.
- Micro USB port for optional external power, useful for low-power HDMI source devices.
- Wide compatibility with HDMI source devices (desktops, notebooks, TV sticks, Raspberry Pi, tablets, digital cameras, SLR cameras, video cameras) and VGA display devices (TVs, monitors, projectors, LCDs).
- Supports high resolutions: 720P, 1080i, and 1080P.
- Note: This adapter is unidirectional; it converts HDMI to VGA only and cannot convert VGA to HDMI.

Image 1.1: The Onten HDMI to VGA Adapter, showcasing its HDMI input, VGA output, 3.5mm audio jack, and micro USB power input.

Image 1.2: A diagram illustrating that the adapter converts HDMI to VGA, but not vice-versa.
2. Package Contents
Verify that all items are present in the package:
- 1 x Onten HDMI to VGA Adapter (HDMI Female to VGA Male)
- 1 x 3.5mm Audio Cable
- 1 x USB Power Cable (Micro USB)
- 1 x User Manual (This document)
3. Setup and Installation
Follow these steps to connect your HDMI source device to a VGA display:
- Connect to Display: Insert the VGA male connector of the adapter into the VGA input port of your display device (monitor, TV, projector). Secure the connection if your VGA port has screws.
- Connect Audio and Power:
- Plug the 3.5mm audio cable from the adapter's audio output to the audio input of your display device or external speakers.
- If your HDMI source device has low power output (e.g., some TV sticks, Raspberry Pi), connect the provided USB power cable to the micro USB port on the adapter and then to a USB power source (e.g., a USB wall adapter, a USB port on your display, or a computer USB port).
- Connect HDMI Source: Connect an HDMI cable (not included) from your HDMI source device (e.g., laptop, TV stick) to the HDMI female input port on the adapter.
- Power On Devices: Ensure both your HDMI source device and VGA display device are powered on.
- Select Input: On your VGA display, select the correct VGA input source. The adapter is plug-and-play and should automatically detect the display's native resolution and scale the output accordingly.

Image 3.1: Diagram showing the plug-and-play connection of the adapter to a laptop and a display. An HDMI cable is required (sold separately).

Image 3.2: Step-by-step visual guide for connecting the adapter, especially for TV sticks, including VGA, HDMI, audio, and power connections.

Image 3.3: Illustration emphasizing the necessity of external power for TV sticks when using the adapter.
4. Operation
Once connected, the adapter functions automatically. The HDMI signal from your source device will be converted and displayed on the VGA monitor. Audio will be routed through the 3.5mm audio jack.
- Video Output: The adapter supports resolutions up to 1080P (1920x1080) for clear video display.
- Audio Output: Ensure your speakers or display's audio input are correctly connected to the adapter's 3.5mm audio jack for sound.
- Plug-and-Play: No drivers are typically required for operation. The adapter automatically adjusts to the display's native resolution.

Image 4.1: Depiction of video and audio synchronization, showing a laptop connected to a large screen and external speakers via the adapter.
5. Compatibility
The Onten HDMI to VGA Adapter is designed for broad compatibility:
- HDMI Source Devices: Compatible with devices that have an HDMI output port, including but not limited to:
- Desktop PCs and Laptops
- TV Sticks (e.g., Amazon Fire Stick)
- Raspberry Pi
- Tablet PCs
- Digital Set-top Boxes
- Digital Cameras, SLR Cameras, Video Cameras
- VGA Display Devices: Compatible with devices that have a VGA input port, including but not limited to:
- TVs
- Monitors
- Projectors
- LCD Displays
- Operating Systems: Commonly used with Windows 7, Windows 8, and Windows 10.

Image 5.1: Examples of usage scenarios, such as gaming, home theater, multimedia teaching, and business presentations.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | HDMI to VGA Adapter |
| Input | HDMI Female |
| Output | VGA Male, 3.5mm Audio Jack |
| Supported Resolutions | 720P, 1080i, 1080P |
| Power Input | Micro USB (optional) |
| Color | Black |
| Dimensions (Adapter body) | Approximately 46mm x 45mm (excluding cable and VGA connector) |
| Cable Length | Approximately 202mm (from adapter body to VGA connector) |
| Item Weight | 2.89 ounces |
| Manufacturer | Onten |

Image 6.1: Detailed view of the adapter's dimensions and individual components (HDMI port, VGA connector, 3.5mm audio jack, micro USB port).
7. Troubleshooting
- No Display / "No Signal" Message:
- Ensure all cables (HDMI, VGA, USB power) are securely connected.
- Verify that the VGA display is powered on and set to the correct VGA input source.
- If using a TV stick or Raspberry Pi, ensure the micro USB power cable is connected to the adapter and a reliable power source. Some HDMI source devices require external power for the adapter to function correctly.
- Test with a different HDMI cable or VGA display if possible to rule out faulty components.
- Confirm that your source device's HDMI output is active.
- No Audio:
- Check that the 3.5mm audio cable is firmly connected to both the adapter and your speakers/display's audio input.
- Ensure the volume on your source device and speakers/display is turned up and not muted.
- Verify that the audio output settings on your HDMI source device are configured to output audio via HDMI.
- Poor Picture Quality / Incorrect Resolution:
- While the adapter automatically scales, some displays may require manual adjustment of resolution settings on the source device for optimal clarity.
- Ensure the HDMI cable used is of good quality.
- Check for any interference from other electronic devices.
- Adapter Not Working with Specific Device:
- Remember, the adapter is unidirectional (HDMI to VGA only). It will not work if you are trying to convert VGA to HDMI.
- Ensure the HDMI source device is providing sufficient power. Use the micro USB power cable if needed.
8. Maintenance
To ensure the longevity and optimal performance of your Onten HDMI to VGA Adapter:
- Keep the adapter in a dry environment, away from moisture and extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Clean the adapter and its connectors with a soft, dry cloth. Do not use liquid cleaners.
- When disconnecting, always grasp the connector ends, not the cable itself, to prevent damage.
9. Warranty and Support
Onten provides lifetime friendly customer service support for this product. For any issues or inquiries, please contact Onten customer support through the retailer's platform or the contact information provided with your purchase.
Please note that the warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or natural disasters.