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Compact USB-C adapter with dual HDMI ports, 3.5mm audio jack and 100W charging port

LUOM

LUOM USB C to Dual HDMI Adapter with 3.5mm Audio, 100W PD, 4K@60Hz

SKU CH-DPQX-J9K88

Connects a USB-C device to two HDMI displays at up to 4K 60 Hz, adds a 3.5 mm audio jack and a 100 W charging port

  • First connector1x USB C
  • Second connector2 x HDMI,1 × 3.5 mm Audio Port,1 × 100w Type C charging port
  • Product typeUSB C to Dual HDMI Adapter
  • Dual 4K@60Hz monitors boost productivity
  • 5mm audio jack connects headphones or speakers
  • 100W PD pass-through keeps laptop charged
  • Plug-and-play with Windows, Mac and Chrome OS
  • Compact design needs no external power supply

Dual-display adapter for USB-C laptops

This adapter connects two HDMI monitors to a single USB-C or Thunderbolt 3 port on Windows laptops, Macs, iPads and phones that support video output. It delivers up to 4K resolution at 60 Hz on each screen and includes a 3.5 mm audio jack for headphones or speakers. A built-in USB-C power-delivery port passes up to 100 W of charge to the host device.

Sustained 4K output without extra power

The unit draws all the energy it needs from the host USB-C connection, so no external power brick is required during extended sessions. Video remains stable at 3840x2160@60Hz across both displays because the adapter relies on the host GPU for rendering rather than an onboard scaler. The aluminium housing dissipates heat passively, keeping performance consistent over long work periods.

DisplayPort Alt Mode limits on macOS and mobile

Windows systems with Intel CPUs can drive two independent extended desktops, while macOS and most phones or tablets only support mirroring the same image on both external screens. The USB-C charging port requires the laptop's original charger to reach the full 100 W; lower-wattage chargers will reduce power delivery accordingly. Resolution scales down from 640x480@60Hz as needed.

How it compares

Measured against everything we stock in Video Signal Converters, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 65% of the 1,459 comparable items (median $17.99).

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Specifications

Product
Product typeUSB C to Dual HDMI Adapter
Audio & video
SoundYes
Ports & slots
First connector1x USB C
Second connector2 x HDMI,1 × 3.5 mm Audio Port,1 × 100w Type C charging port,

Questions about this item

Does the LUOM adapter get hot or draw much power when driving two 4K monitors at 60 Hz all day?

The adapter runs from the host USB-C port and needs no extra power brick; the 100 W pass-through port is for charging the laptop, not for powering the adapter itself.

What must my laptop already have so this LUOM adapter can output two independent 4K screens?

A USB-C or Thunderbolt port that supports video output; on Windows the CPU must be Intel (not Celeron) to enable dual-extend mode.

Will the LUOM adapter work with my older 1080p monitors and 3.5 mm speakers?

Yes — resolution scales down to 640×480 at 60 Hz, and the 3.5 mm audio jack feeds headphones or speakers directly.

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