1. Product Overview
The ATOTO AC-AHV68 is a USB to HDMI video out adaptor designed to connect devices with an HDMI output port to compatible ATOTO Android car stereos via a USB-A end. This adaptor allows you to display content from external HDMI sources, such as gaming consoles or TV boxes, directly on your ATOTO head unit's screen.

Image: ATOTO AC-AHV68 USB to HDMI Video Out Adaptor. This image shows the compact black adaptor with a USB-A connector on one end and an HDMI input on the other.
2. Compatibility
This adaptor is specifically designed for use with ATOTO Android devices. It is compatible with the following series:
- ATOTO P9 Series
- ATOTO A6 PF Series
- ATOTO A6 PP Series
- ATOTO S8 Gen2 Series
Important Note:
- The AC-AHV68 is NOT compatible with ATOTO S8 Gen1, F7, SA102, A6 KL, A6 Y, or any other brand's car stereo models.
- It only works with HDMI 1.4b or older devices.
- Ensure your head unit has the "HDMI-IN" app installed. If not, you can download the APK file from the ATOTO resource site onto a USB drive and install it.
3. Setup and Installation
Follow these steps to set up and install your ATOTO AC-AHV68 adaptor:
- Check for "HDMI-IN" App: Before using the adaptor, verify that the "HDMI-IN" app is installed on your ATOTO head unit. You can usually find this app among your installed applications.
- Install "HDMI-IN" App (if needed): If the "HDMI-IN" app is not installed, download the APK file for the app from the official ATOTO resource site onto a USB drive. Insert the USB drive into your head unit, navigate to the file using the file manager, and open the APK file to start the installation. Alternatively, you can download and install the "HDMI-IN" app directly from "FindApps" on your head unit.
- Connect HDMI Source: Connect the HDMI end of your external device (e.g., gamepad, TV box, Nintendo Switch) to the HDMI input port of the AC-AHV68 adaptor.
- Connect to Head Unit: Insert the USB-A end of the AC-AHV68 adaptor into the designated "External Storage" USB port of your ATOTO Android car stereo. Connecting to an incorrect USB port may result in no signal.
Video: Installation and Usage of ATOTO AC-HBV86 HDMI-to-USB Adapter. This video demonstrates how to connect the HDMI-to-USB adapter to an ATOTO head unit and an external HDMI device, showing the process of installing the necessary app and displaying content.
4. Operating Instructions
Once the adaptor is connected and the "HDMI-IN" app is ready, you can start using your external HDMI devices:
- Launch "HDMI-IN" App: On your ATOTO head unit, open the "HDMI-IN" application.
- Display Content: The content from your connected HDMI device should now be displayed on your car stereo screen.
- Enjoy Entertainment: You can enjoy your favorite movies and shows from TV boxes, or play games from consoles like Nintendo Switch, adding entertainment to your trips.
Video: Overview of ATOTO A5L Android Head Unit Features. This video showcases various features of an ATOTO Android head unit, including app compatibility, connectivity options, audio adjustments, and screen functions, which are generally applicable to compatible head units used with the AC-AHV68 adaptor.
5. Troubleshooting
If you encounter issues with your ATOTO AC-AHV68 adaptor, refer to the following troubleshooting steps:
Issue 1: Screen flickering and unstable image.
- Solution 1: Ensure the HDMI cable and USB port are securely connected.
- Solution 2: Inspect the HDMI cable for damage (scratches, tears, twists); consider trying a different cable.
- Solution 3: Verify video format compatibility with your car stereo; lower the resolution if needed.
Issue 2: No signal on the screen.
- Solution 1: Verify that the ATOTO AC-AHV68 adaptor is correctly matched with compatible car stereo models (ATOTO S8 Gen2, A6 PF, A6 PP series). It is not compatible with ATOTO S8 Gen 1, F7, SA102, A6 KL, A6 Y, etc., and any other brand's car stereo models.
- Solution 2: Ensure the adaptor is connected to the car stereo's designated USB port for External Storage. If the wrong USB port is connected, the signal will be lost.
Issue 3: Screen freezing and cannot play normally.
- Solution 1: Verify video format compatibility with your car stereo; lower the resolution if needed.
- Solution 2: Close unused apps on the car stereo, clear connections, cache, and restart your phone before reconnecting to watch.
6. Specifications
- Model Number: AC-AHV68
- Brand: ATOTO
- Connector Type: HDMI (input) to USB (output)
- Compatible Devices: Monitor (ATOTO S8 Gen2, A6 PF, A6 PP series car stereos)
- Color: Black
- Item Weight: 0.634 ounces
- Package Dimensions: 9.17 x 6.22 x 0.75 inches
- HDMI Version Compatibility: HDMI 1.4b or older
7. Warranty and Support
ATOTO offers product care for its devices. For specific warranty details and support, please refer to the following:
- Product Care: 12 + 6 months (refer to ATOTO's official policy for details).
- Customer Support: For assistance, please seek help via your order center, eproductcase, or contact support at support@atotoglobal.com.