Product Overview
The StarTech.com USB 3.0 to Dual HDMI Adapter allows you to connect two independent HDMI displays to your computer using a single USB 3.0 port. This adapter is designed to enhance your productivity by providing additional screen space for multitasking.

Figure 1: StarTech.com USB 3.0 to Dual HDMI Adapter with included cables.

Figure 2: Professional features of the adapter, including 2-channel audio and USB bus power.
Compatibility
This adapter is compatible with Windows operating systems (Windows 7, 8/8.1, 10, and 11). Administrator rights are required for driver installation. Please note that this adapter does not support macOS, ChromeOS, or Linux.

Figure 3: Operating system compatibility for the USB 3.0 to Dual HDMI Adapter.
Setup
- Driver Installation: Before connecting the adapter, download and install the latest drivers from the official StarTech.com support website. Search for model USB32HD2. Administrator rights are required for this process.
- Connect Adapter to Computer: Plug the USB-A connector of the adapter into an available USB 3.0 port on your Windows computer.
- Connect Displays:
- Connect your primary HDMI display (up to 4K 30Hz) to the HDMI Port 1 (labeled "4K HDMI") on the adapter.
- Connect your secondary HDMI display (up to 1080p 60Hz or 1920x1200) to the HDMI Port 2 (labeled "HDMI") on the adapter.
- System Restart (Recommended): After driver installation, it is recommended to restart your computer to ensure all changes take effect.

Figure 4: Detailed view of the adapter's ports and their supported resolutions.
Video 1: Official product video demonstrating the setup and functionality of the USB 3.0 to Dual HDMI Adapter.
Operating the Adapter
Once the adapter and displays are connected, your Windows operating system should automatically detect the new monitors. You can configure display settings through your operating system's display preferences.
- Extend Display: To use the additional monitors as an extension of your primary display, navigate to Display Settings in Windows and select "Extend these displays." This allows you to have different content on each screen, increasing your workspace.
- Duplicate Display: To mirror your primary display onto the additional monitors, select "Duplicate these displays" in Display Settings.
- Audio Output: The adapter supports 2-channel audio pass-through via the HDMI connection. Ensure your audio output is set to the correct HDMI display in your sound settings.
Maintenance
To ensure optimal performance and longevity of your StarTech.com USB 3.0 to Dual HDMI Adapter, follow these maintenance guidelines:
- Keep Clean: Regularly wipe the adapter with a soft, dry cloth to remove dust and debris. Avoid using liquid cleaners.
- Proper Storage: When not in use, store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
- Handle with Care: Avoid bending or twisting the cable excessively, and do not pull on the cable to disconnect the adapter. Always grasp the connector.
- Software Updates: Periodically check the StarTech.com support website for updated drivers to ensure compatibility and performance improvements.
Troubleshooting
If you encounter issues with your USB 3.0 to Dual HDMI Adapter, refer to the following common troubleshooting steps:
| Problem | Solution |
|---|---|
| No display on connected monitors. |
|
| Display flickering or unstable. |
|
| Incorrect resolution or display mode. |
|
| No audio through HDMI. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | USB32HD2 |
| Brand | StarTech.com |
| Connector Type | USB Type A (Male) to 2x HDMI (Female) |
| Supported Resolutions (HDMI 1) | Up to 4K (3840x2160) at 30Hz |
| Supported Resolutions (HDMI 2) | Up to 1920x1200 or 1080p at 60Hz |
| Audio Support | 2-channel audio via HDMI |
| HDCP Support | HDCP 1.4 |
| Cable Length | 9.8 inches (25 cm) |
| Product Dimensions | 12.4 x 2.6 x 0.6 inches |
| Item Weight | 1.97 ounces |
| Color | Black |
| What's in the Box | USB video adapter (1), Quick-start guide (1) |
Warranty and Support
The StarTech.com USB 3.0 to Dual HDMI Adapter is backed by a 3-year warranty and free lifetime technical support.
For additional support, including user guides and troubleshooting resources, please visit the official StarTech.com support page or refer to the provided PDF documents:





