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Compact USB-C adapter with USB and HDMI ports

LORDWORLD

LORDWORLD USB-C to USB 10Gbps & HDMI 4K144Hz Adapter (JCA399G)

SKU CH-JTD4-N2MBE

A USB-C adapter providing a 10 Gbps USB port and HDMI output at 4K 144 Hz

  • 10 Gbps USB data speed for fast file transfers
  • HDMI output up to 4K at 144 Hz for smooth high-resolution video
  • Single USB-C adapter adds both USB and HDMI connectivity
  • Compact JCA399G design fits easily in a laptop bag

USB-C 10Gbps and HDMI 4K144Hz Adapter

This adapter connects a USB-C host to a USB 10Gbps peripheral and an HDMI display running at 4K 144Hz. It suits users who need simultaneous high-speed data and high-refresh video from a single port. The JCA399G model targets laptops and tablets with limited I/O. It handles both signals without requiring extra power.

Sustained data and video throughput

Under continuous use the USB channel maintains 10Gbps bandwidth for storage or docks while the HDMI output drives 4K at 144Hz. Thermal design keeps performance stable during long sessions. It is not for users who need multiple video outputs or legacy USB-A ports without a hub. It does not supply power to the host device.

How it compares

Measured against everything we stock in USB Graphics & Display Adapters, at today’s prices. Recalculated every night.

Price $119.99
Pricier than about 92% of the 749 comparable items (median $23.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

How much power does the JCA399G adapter draw when running a 4K 144Hz display all day?

The adapter is bus-powered from the USB-C port and draws only the power needed for the 10Gbps data link and video output; no external supply is required.

What host port must my laptop already have for this adapter to work?

Your laptop needs a USB-C port that supports DisplayPort Alt Mode and USB 10Gbps data to drive the HDMI 4K144Hz output and the 10Gbps USB port.

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