USB 3.0 to Dual DisplayPort Adapter - 4K 60Hz

Starting in High Sierra 10.13, macOS enforces stricter security policies than previous revisions. As a result of these changes, software packages, like those used in this installation, will need to be allowed within the macOS Security and Privacy settings, immediately after the software has been installed, in order for the device to operate.

To allow the software, follow these steps after you've completed installation on your Mac:

1. Open System Preferences.
2. Open Security & Privacy.
3. Click the Allow button near the bottom of the General tab.

Note: The option to allow the software will be available within the Security & Privacy settings for 30 minutes. If the software is not allowed within that time frame, the software must be reinstalled in order for macOS to grant the opportunity to allow it again.

To install the DisplayLink Manager app, please follow these steps:

1. Download the latest driver: [displaylink] mac usb display adapter.zip
2. Connect the StarTech.com product to both your Mac and the external display
3. Follow Steps 4 to 4.10 here: DisplayLink Manager App for macOS [external link to DisplayLink.com]

If the displays still do not work, please review these points:

• After installing, ensure you have completed Steps 4.4 to 4.9 in the linked article, which includes running the application after installation and selecting “Launch automatically after logging-in”.  This will ensure it starts automatically every time you log-in.
• On Apple M1-based Macs, you may be prompted to install Rosetta during the DisplayLink install process. This is currently required to allow DisplayLink to work on Apple Silicon Macs.
• Clamshell and rotation support on macOS Big Sur 11.x with DisplayLink Manager [external link to DisplayLink.com]

DisplayLink powered USB video adapters and docking stations are not compatible with any MacBook running macOS 10.13.4 - 10.13.6. If a system has updated to macOS 10.13.4, 10.13.5, or 10.13.6, upgrading to macOS 10.14 (Mojave) is an option for users to restore DisplayLink functionality.

At this time, the DisplayLink compatibility issue also affects any 2018 MacBook Pro laptops with an Intel Coffee Lake CPU running macOS 10.14. Please see the DisplayLink site for a driver download workaround. This workaround will force AirPlay to extend or mirror one USB display.

For alternative product recommendations including our catalog of Thunderbolt™ products, connect with our Technical Advisory team at the bottom of our Support page.

Computers running macOS Catalina (10.15) may experience compatibility issues with products that use DisplayLink technology, such as USB Docking Stations and Video Adapters. Connecting to a DisplayLink-powered Product may cause the Display(s) to output a blank screen. If you experience this problem, follow these steps:

1. Update computer to the latest version of macOS 10.15
2. Permit Screen Recording by following these steps: macOS Catalina 10.15: Screen Recording permission (external link)
3. Enable the DisplayLink Kernel Extension by following these steps: macOS 10.13, 10.14 and 10.15: Video functionality not enabled (external link)
4. If the problem persists, try installing the DisplayLink Manager Application (external link). Be sure to run the application after installation and select “Launch automatically after logging-in” for it to start automatically every time you log-in.

1. Our driver may not be installed or is out of date.  Install the latest driver from StarTech.com’s website.
2. The primary display adapter for the computer has an outdated or basic driver installed. Update the video driver using the manufacturer’s support site.
3. The product requires an existing video controller (onboard or discrete) from Intel, AMD, or NVIDIA.  The video controller must have a WDDM (Windows Display Driver Model), compatible driver. Most video controllers from 2008 or newer will meet this requirement.
4. An incompatible operating system is being used (i.e., MCT based adapter and macOS).  If using a Mac, we recommend exchanging the product for a DisplayLink based version.
5. The display connected to the StarTech.com adapter is set to the wrong video input. Use the display’s on-screen display menu to select the correct input.

Your user account may require administrator privileges to install the driver.  If the computer is managed by the IT department or service provider, they may need to be contacted to help with this step.

Disable hardware acceleration in each browser and Office application, then close and re-open each application.

Ensure the Sound Playback device in Windows (or Output device in macOS) has been set to be our USB audio device.

In order for your mouse to move properly between your monitors you must rearrange your monitors in Windows to match the physical location of your monitors on your desk. To do so, complete the following based on your operating system:

Windows 10 and Windows  8

1. On your keyboard, press the Windows key + X and select Control Panel.
2. Click Appearance and Personalization, then click Display.
3. Click the Resolution or Adjust Resolution option from the left column, which will display your monitors as numbered icons.
4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
5. Click and drag the monitor icons to best match your physical setup.
6. Click OK to apply the changes and close the window.

Windows 7 and Windows Vista

1. Click the Start button and select Control Panel.
2. Click Appearance and Personalization, then click Display.
3. Click the Resolution or Adjust Resolution option from the left column, which will display your monitors as numbered icons.
4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
5. Click and drag the monitor icons to best match your physical setup.
6. Click OK to apply the changes and close the window.

Windows XP

1. Click the Start button and select Control Panel.
2. Double-click Display.
3. Click the Settings tab, which will display your monitors as numbered icons.
4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
5. Click and drag the monitor icons to best match your physical setup.
6. Click OK to apply the changes and close the window.

To mirror the image from your primary monitor instead of extending your desktop, refer to the following FAQ: http://www.startech.com/faq/Windows_Mirroring_Monitors

To arrange extended displays on Windows 10, complete the following. 

1. Press the Windows key+R, type desk.cpl, and press Enter. 
2. Under the ‘Multiple Displays’ selection, select ‘Extend Desktop To This Display.’  
3. Press ‘Identify’ to determine what number each display is assigned to. 
4. Drag and drop each display accordingly to the physical layout on your desk.  
5. Click the Apply button. 

To arrange extended displays on macOS, complete the following. 

1. Navigate to the Apple Menu > System Preferences, click Displays, then click Arrangement. 
2. Make sure that the ‘Mirror Displays’ checkbox is not selected. 
3. Click on each display to determine what number each display is assigned to. 
4. Drag and drop each display accordingly to the physical layout on your desk.  

No, this product requires a video card or onboard video to already be present in the computer. Please also make sure that the latest video driver is installed for the existing video controller. 

Whether this device works with the Chrome OS™ operating system or not depends on the version of the Chrome OS operating system that you’re running and the model of the Chromebook™ notebook computer that you’re using.

Existing DisplayLink® enabled USB 3.0 products natively support Chrome OS build version R55 and later, but not all Chromebook notebook computers running build version R55 and later natively support DisplayLink. Support for DisplayLink is being rolled out to Chromebook notebook computers in a series of releases. To see the build version of the Chrome OS operating system that supports DisplayLink and corresponds to the model of the Chromebook notebook that you’re using, view the following knowledge base article on the DisplayLink website: http://support.displaylink.com/knowledgebase/articles/891030.

In Windows, the maximum number of displays that can be used using DisplayLink technology is 6. In macOS, the maximum is 4 displays. Some computers may have limitations that will reduce this number. These limitations are usually the result of the GPU, or USB controller resources.