System Requirements

  • Your host USB-C port (USB 3.1 is recommended) must support USB™ Power Delivery and DisplayPort alt mode to ensure full functionality.

  • 4K-capable displays and cable are required to achieve 3840 x 2160p resolution.

  • DisplayPort v1.2 required on graphics card or video source to support 3840 x 2160 @ 30 Hz

  • Your mobile device might require more power than your charger can allow to use the adapter and charge your device simultaneously. To ensure the JCA374 powers and charges your mobile device while in use, a higher wattage power adapter may be required.


Host Interface

USB Type-C Male connector

Video Interface

HDMI DB 15 pin Female connector

Ethernet Port

RJ-45 Female connector (Gigabit Ethernet)

USB Port

USB 3.0 Female connector x2


Power Mode

Bus-powered or self-powered



Display resolution: 4K @ 30 Hz / 1080p @ 60 Hz


Transfer Rate: 1000 Mbps (Half Duplex) / 1000 Mbps (Full Duplex)
IEEE: IEEE 802.3az, IEEE 802.3, 802.3u, and 802.3ab, IEEE 802.3x


  • Supports Wake On LAN function, suspend mode and remote wake-up via link-change, Magic Packet or Microsoft wake-up frame
  • Supports IEEE 802.1Q VLAN tagging and 2 VLAN ID filtering
  • Supports Jumbo Frame
  • Supports Checksum Offload (IPv4, IPv6, TCP, UDP) and TCP Large Send Offload


Physical Specifications


Main body:
50.5(W) x 15(H) x 96.5(D) mm
Cable length: 24 cm


Approximately 69g (including cable)


Special Notes:

  • If you are using a high-powered USB device please attach an USB-C power adapter to the JCA374 power delivery port for maximum performance.

  • To ensure files copy completely, do not remove the USB-C power adapter while copying files.

  • For more information about Power Delivery & graphic cards for your device, refer to the manufacturer of your hardware.

Package Contents

  • JCA374 USB Type-C Multi-Adapter
  • Quick Installation Guide
  • Driver CD

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