JCD391 4K60 Elite USB-C® PD Multi-Port Adapter

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  • About This Product

      This compact multi-port adapter is ideal for travel, featuring everything from the essential HDMI™ output, USB™ ports to Gigabit Ethernet and 86W Power Delivery passthrough. It gives you the ability to connect your Chromebook™, MacBook®, or other USB-C® compatible laptops to a 4K monitor or TV with 60 Hz refresh rate and audio. With USB™ Power Delivery 3.0, you can charge your laptop and power your peripherals with a single USB-C® power adapter even if your laptop only has one USB-C® port. In addition, you can connect or charge your USB™ devices via the SuperSpeed USB™ 5Gbps ports and access a wired network through the Gigabit Ethernet port.

      Through a single USB-C® (Thunderbolt™ 3 compatible) host cable, this compact adapter provides all the essential connectivity you need to create a workstation virtually anywhere!


      • • Certified to meet Chromebook™ compatibility standards
      • • Supports resolutions up to 4K @ 60 Hz
      • • Reliable network connectivity via the Gigabit Ethernet port
      • • Power Delivery 3.0 offers up to 86W of pass-through charging with a USB-C® power adapter
      • • Two USB™ 5Gbps ports for connecting peripherals or downstream charging
      • • Plug-and-play, no driver installation required

  • JCD391 Support

    • At j5create we strive to maintain 100% customer satisfaction and functionality, no matter what product or system you may have. We have a dedicated technical support specialists waiting to assist you and your specific needs.

      Call Us: 888-988-0488
      Email Us: service@j5create.com
  • JCD391 Specifications

    • System Requirements
      • • Available USB-C® port that supports DisplayPort™ alternate mode and USB™ Power Delivery 2.0 or 3.0. Please refer to the manufacturer of your computer for more information about your device
      • • The host device must support DisplayPort™ 1.4 to achieve 4K resolution at 60 Hz. DisplayPort™ 1.4 devices are listed as follows, but not limited to: Acer® Chromebook Spin 713



      2 Year Limited

      Host Connector

      1 - USB-C® Male

      Video Output

      1 - HDMI™ Female

      Power Source

      Bus-powered or self-powered

      Network Interface


      Audio Supported



      • 1 - USB-C® Power Delivery 3.0
      • 1 - 4K HDMI™
      • 2 - USB™ Type-A (5Gbps)
      • 1 - RJ45 Gigabit Ethernet

      Maximum Display Resolution

      3840 x 2160

      Maximum Display Refresh Rate

      60 Hz

      Maximum Data Transfer Rate

      5 Gbps

      Maximum Displays Supported


      Compatible Networks


      Audio Channel

      2.1 via HDMI™


      Power Delivery

      Up to 86W via USB-C®

      Power Consumption

      ≤ 400 mA

      Input Current

      Up to 5A

      Input Voltage

      Up to 20V

      Output Current

      Up to 4.25A

      Output Voltage

      Up to 20V

      Physical Specifications



      Enclosure Type


      Cable Length

      7.87 in. (200 mm)

      Product Height

      3.06 in. (77.6 mm)

      Product Width

      2.62 in. (66.5 mm)

      Product Depth

      0.58 in. (14.7 mm)

      Product Weight

      2.54 oz (72g)

      Storage Temperature

      0 to 155°F (-17 to 68°C)

      Storage Humidity

      < 85% non-condensing

      Operating Temperature

      32 to 118°F (0 to 48°C)

      Operating Humidity

      < 85% non-condensing

      Special Notes

      • • A 4K-capable display is required for obtaining the 3840 x 2160 resolution
      • • If connected to a USB™ 2.0 host port, or if using a USB™ 2.0 host cable, performance may be limited
      • • The adapter can connect to a USB-C® port that doesn’t support Power Delivery, but it will not pass power through the connected device
      • • If you are using high-powered USB™ devices, attach a USB-C® power adapter to the power delivery port to ensure maximum performance. Do not remove the power adapter while copying files to avoid disruption.
      • • We advise no more than one (1) bus-powered/portable external hard disk drive to be connected to the adapter at a time
      • • Supports Automatic OTA (Over-the-air) Firmware Updates for Chrome OS™

      Package Contents

      • • 1 - JCD391 USB-C® PD Multi-Port Adapter
      • • 1 - Quick Installation Guide (QIG)

Chromebook™ Certified

Tested and certified by Google® engineers to work with current and future Chromebook™ devices

5-in-1 Functions

All the connections you need for connecting various devices.

Crisp 4K Resolution

Mirror or extend your screen and directly output resolutions up to 4K UHD @ 60 Hz

SuperSpeed USB™ Ports

Allows you to connect an external keyboard, mouse, or USB™ flash drive

86W of Pass-Through Charging

Supports Power Delivery 3.0 allowing your device to charge with a USB-C® power adapter

High-Speed Ethernet Port

Ethernet port included for a fast Gigabit network connection

Made with Advanced CNC Technology

Match your Chromebook™ with our silver premium aluminum casing

Universal Compatibility

Works with a variety of USB-C® devices, including tablets and phones, and multiple operating systems, including ChromeOS™, Windows® and macOS®


Begin using immediately – no driver installation required

Seamless Performance

Supports automatic OTA Firmware updates via ChromeOS™ to optimize device capabilities