OWC USB-C Dual HDMI 4K Display Adapter

Support Manual

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Introduction

1.1 System Requirements

Operating System & Hardware

  • Works with any USB4 | USB-C | Thunderbolt 5 | Thunderbolt 4 | Thunderbolt 3 (Mac only) and later equipped:
    • Mac: macOS 10.15.x and later
    • PC: Windows 7 and later
    • Linux: current version recommended
    • ChromeOS: current version recommended
    • Android: current version recommended

Drivers

      1.2 Package Contents

      • (1) OWC USB-C Dual HDMI 4K Display Adapter

      1.3 Overview

      A. (1) Integrated USB Type-C cable – Connect to any Mac, PC, Chromebook, or Android with a USB4, USB-C, or Thunderbolt 3 and later port.

      • Compatible with USB Type-A ports (USB 3.0 faster recommended) via adapter or cable (sold separately)

      B. (2) HDMI 2.0 ports - Connect up to (2) HDMI display cables (Up to 4K @ 60Hz).

      C. (1) LED Indicator

      • Data Connection = Solid White

        Getting Started

        2.1 Device Setup

        • This section describes the process of setting up the OWC USB-C Dual HDMI 4K Display Adapter

        Driver Requirement

        1. Download and install the appropriate driver for your host:

        2. Mac users: The DisplayLink Manager application must remain open for the connected displays to be recognized. This application can be set to automatically launch after login.

        3. Mac users: Screen recording with the DisplayLink Manager will need to be allowed. Allowing screen recording is required for the displays to be recognized by the host.

        • Go to System Preferences > Security & Privacy.
          • If the lock at the bottom left of the pane is locked, click it and enter your administrator password to unlock the preference pane.
        • In the left column of the Privacy tab:
          • Choose "Screen Recording" from the available options.
          • Click on + to add an application.
          • Select "Applications".
          • Select "DisplayLink Manager".
          • Select "Open".

        Connecting Device

        1. Remove the OWC USB-C Dual HDMI 4K Display Adapter from the retail packaging.

        2. Connect up to (2) HDMI display cables to the OWC USB-C Dual HDMI 4K Display Adapter

        3. Connect the OWC USB-C Dual HDMI 4K Display Adapter to a host.

        Device Management

        3.1 Usage Notes

        • Compatible with USB Type-A ports via adapter or cable (sold separately). USB 3.0 or faster recommended.
        • macOS Users: The driver is incorporated with the DisplayLink Manager application.
        • macOS Users: The connected displays will not be recognized by the host if the DisplayLink Manager application is not open.
        • Dual display support, including available resolution and refresh rates, is dependent on host hardware and drivers.
          • Please review the Apple silicon External Display Support support article for more details regarding how many displays can be connected to an Apple silicon Mac system.
            • Apple Intel-based Mac models and Thunderbolt 4 PCs can support up to two displays at up to 4K @ 60Hz.
            • Displays that do not have Display Stream Compression (DSC) will experience lower refresh rates.

        Support Resources

        4.1 Troubleshooting

        • Verify the USB-C cable is securely connected between the OWC USB-C Dual HDMI 4K Display adapter and host.
        • Connect the OWC USB-C Dual HDMI 4K Display adapter to a different host.
        • Ensure the DisplayLink Manager application, when using a Mac, is open if the connected displays are not recognized by the host.
        • Ensure the proper driver for DisplayLink adapters is installed if the connected displays are not recognized by the host.
        • Check power input to the monitors if not recognized by the host. Trying a different HDMI cable my resolve any display connection issues.
        • We are very sorry If issues continue to occur. Please know that OWC support is here to help. Contact information for our support can be found in section 4.3 "Contacting Support". Please have your serial number ready which is located on the bottom of the OWC USB-C Dual HDMI 4K Display Adapter and printed on the original packaging.

        4.2 Online Resources

        4.3 Contacting Support

        4.4 About This Manual

        The images and descriptions may vary slightly between this manual and the unit shipped. Functions and features may change depending on the firmware version. The latest product details and warranty information can be found on the product web page. OWC’s Limited Warranty is not transferable and

        General Use Precautions

        • To avoid damage, do not expose the device to temperatures outside the following ranges:
          • Environmental (Operating)
            • Temperature (ºF): 41º — 95º
            • Temperature (ºC): 5º — 35º
          • Environmental (Non-Operating)
            • Temperature (ºF): -4º — 140º
            • Temperature (ºC): -20º — 60º
        • Always unplug the device from the electrical outlet if there is a risk of lightning or if it will be unused for an extended period-of-time. Otherwise, there is an increased risk of electrical shock, short-circuiting, or fire.
        • Protect your device from excessive exposure to dust during use or storage. Dust can build up inside the device, increasing the risk of electrical shock, short-circuiting, or fire.

        Safety Precautions

        • Use proper anti-static precautions when handling this device. Failure to do so can increase the risk of electrical shock or short-circuiting.
        • Never expose your device to rain, or use it near water, or in damp wet conditions. Never place objects containing liquids on the device, as they may spill everywhere and into the openings. This will increase the risk of electrical shock, short-circuiting, fire, or personal injury.
        • To avoid any risk of electrical shock, short-circuiting, fire, or dangerous emissions, never insert any metallic object into the device.
        • Please cease use of the device and contact OWC Support if it appears to be malfunctioning.

        Terms & Conditions of Sale

        Warranty

        OWC’s products are subject to OWC’s Terms & Conditions of Sale located at Terms of Sale or other applicable terms. The OWC USB-C Dual HDMI 4K Display Adapter comes with a 1-Year Limited Warranty. Additional warranty information can be viewed by visiting Hardware Warranties.

        Changes

        The material in this document is for information purposes only and subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, OWC, its parent, partners, affiliates, officers, employees, and agents assume no liability resulting from errors or omissions in this document, or from the use of the information contained herein. OWC reserves the right to make changes or revisions in the product design or the product manual without reservation and without obligation to notify any person of such revisions and changes.

        FCC Statement

        Warning! Modifications not authorized by the manufacturer may void the user’s authority to operate this device.
        NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference with radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

        • Reorient or relocate the receiving antenna.
        • Increase the separation between the equipment and receiver.
        • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

        Copyrights and Trademarks

        No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of OWC.

        © 2025 Other World Computing, Inc. All rights reserved. OWC, and the OWC logo are trademarks of New Concepts Development Corporation, registered in the U.S. and/or other countries. Mac and macOS are trademarks of Apple Inc., registered in the U.S. and other countries. Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries. Other marks may be the trademark or registered trademark property of their owners.

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