JCA351 USB-C® to 4K HDMI™ Ethernet Adapter

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  • About This Product

      Add extra functionality to your laptop with the JCA351 USB-C® to 4K HDMI™ Ethernet Adapter. This adapter allows you to add an additional 4K HDMI™ monitor, connect to a Gigabit Ethernet network, and includes a USB-C® Power Delivery port that can be used to charge your laptop when a USB-C® power adapter is connected.

      Display Alt Mode for HDMI™ supports a resolution up to 4K with Primary, Extended, and Mirrored display modes. The JCA351 supports upstream charging and Power Delivery 3.0 100W to keep your connected laptop powered up while in use.


      • • Plug and play – No software or drivers required
      • • Power delivery 3.0 provides up to 100W of power passthrough
      • • Reversible and symmetrical USB-C® connector
      • • DisplayPort™ Alt Mode for HDMI™
      • • Supports up to 4K resolution
      • • Reliable network connectivity via the Gigabit Ethernet port

  • JCA351 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
  • JCA351 Specifications

    • System Requirements

      • • Available DisplayPort™ Alternate Mode over USB-C® connector required.
      • • DisplayPort™ v1.2 required on graphics card or video source to support 4K @ 30 Hz resolution.
      • • Available USB-C® port (USB™ 3.1 is recommended) with support for USB™ Power Delivery and DisplayPort™ Alternate Mode to ensure proper functionality.
      • • Windows® 11,10 / macOS® / Chrome OS™

      Special Notes

      • • DisplayPort™ Alternative mode is required to output to a display via the HDMI™ port.
      • • Windows® 10-11 / macOS® / Chrome OS™ compatible
      • • If you are using a high-powered USB™ device, please attach a USB-C® power adapter to the JCA351 power delivery port for maximum performance.
      • • To ensure files copy completely, do not remove the USB-C® power adapter while copying files.
      • • Power adapter not included. If applicable, please use the power adapter that came with your computer.
      • • Your mobile device might require more power than your charger allows when using the adapter and charging your device simultaneously. To ensure the JCA351 powers and charges your mobile device while in use, a higher wattage power adapter may be required.



      2 Year Limited

      Host Connector


      Video Output


      Power Source

      Bus-Powered, Self-powered

      Audio Supported


      USB™ Pass-Through



      1 – USB-C® PD for upstream charging

      1 – 4K HDMI™ Output

      1 – Gigabit Ethernet


      Maximum Display Resolution

      3840 x 2160

      Maximum Display Refresh Rate

      30 Hz

      Maximum Data Transfer Rate


      Displays Supported


      Audio Channel

      2.1 via HDMI™


      Power Delivery


      Power Consumption


      PD Input Current

      Up to 20V

      PD Input Voltage

      Up to 5A

      PD Output Current

      Up to 20V

      PD Output Voltage

      Up to 4.5A

      Physical Specifications



      Enclosure Type

      ABS Plastic

      Cable Length

      7.87 in. (20 cm)

      Product Height

      1.96 in. (50 mm)

      Product Width

      3.14 in. (80 mm)

      Product Depth

      0.55 in. (14 mm)

      Product Weight

      1.83 oz (52g)

      Storage Temperature

      14 to 140°F (-10 to 65°C)

      Storage Humidity

      < 85% non-condensing

      Operating Temperature

      32 to 118°F (0 to 47°C)

      Operating Humidity

      < 85% non-condensing

      Package Contents

      • • 1 - JCA351 USB-C® to 4K HDMI™ Ethernet Adapter
      • • 1 - Quick Installation Guide (QIG)

All the connections you need for maximum productivity

Supports up to 4K resolution

The HDMI™ port allows you to mirror or extend your screen and directly output 4K UHD video to an HDTV, monitor, or projector

100W Power Delivery Pass-Through

The JCA351 supports upstream charging and Power Delivery 3.0 100W to keep your connected laptop powered up while in use

Universal Compatibility

Works with a variety of USB-C® devices, including tablets, phones, and laptops

Easily add a wired network connection with the Gigabit Ethernet

This device allows you to add an additional 4K HDMI™ monitor and Gigabit Ethernet

Plug and Play

No driver installation needed

Connect Effortlessly