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Cable Matters 201018 USB-C to 4K HDMI Adapter

Article ID: 83
Last updated: 28 Sep, 2018

System requirement

Not all USB-C ports support all features of USB-C. Some computers and smartphones only support data over USB-C for external storage such as flash drives while some devices support video and charging over USB-C. Check the below article about the USB-C port capability. If you are not sure, please consult the manufacturer for this information.

Symptom: The adapter is not functioning properly on a Windows computer with Thunderbolt 3. Symptoms include no video and flickering video.

Solution: Update BIOS, Thunderbolt 3 firmware, Thunderbolt 3 driver, and Intel Graphics Driver from the manufacturer website. For more details, refer to articles below:

BIOS, Firmware and Driver Updates

Update Intel Graphics Driver

Symptom: The adapter is not recognized

Unplug all cables, restart the computer, and then reconnect everything.

Symptom: HDMI does not work at full 4K 60Hz resolution

The adapter supports HDMI 2.0 resolution up to 4K at 60Hz. You will need a 4K 60Hz rated computer, HDMI cable, and display to take advantage of HDMI 2.0 bandwidth.

Some smartphones and laptops such as the LG G5 (1080p) and 12" MacBook (4K@30hz) do not support 4K at 60 Hz video out. Some displays have multiple HDMI inputs and not all of them are HDMI 2.0 capable so test each HDMI input.

Symptom: Adapter stops outputting full 4K 60Hz resolution after upgrading to macOS 10.14 Mojave. Refresh rate is capped at 30Hz.

Please refer to the article below to enable 60Hz in macOS 10.14 Mojave.

Symptom: Audio is not transmitted to monitor through HDMI

Some monitors do not have built-in speakers. Therefore, audio must be transmitted separately. If audio is supported, please follow the steps below to select the correct playback device:


1) Open the 'Sound' menu by searching or right clicking the sound icon on the taskbar

2) In the Playback Tab, select the display with HDMI

3) Click Set Default

4) Click OK to save the settings


1) Open the Apple Menu and go to System Preferences

2) Click the Sound icon

3) Click the Output tab

4) Select the display with HDMI

Article ID: 83
Last updated: 28 Sep, 2018
Revision: 9
Comments: 5
HDMI USB-C Thunderbolt 201018 3 to

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Cable Matters 107009 480GB Bus-Powered External Thunderbolt 3...     Cable Matters 201055 USB-C to Dual 4K DisplayPort Multiport...

Comments rss
emnipetro | 12 Oct, 2018 12:03 PM
would you tell me how I connect with the HP Customer Support when I face an issue with that HP product because I need the help of supporter team when my system does not work properly sometime due to the internal issue on it.?
Posted: 2 months ago   | Permalink
happywheelsgame | 26 Oct, 2018 04:08 AM
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Posted: 1 month ago   | Permalink
alishiasergi | 11 Nov, 2018 04:30 PM
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Posted: 1 month ago   | Permalink
Thanos | 22 Nov, 2018 09:41 AM
Must be thanks for the share the great article for me i really like the blog you need to get here update to windows class room to easily access dual monitor setup windows setting easily.
Posted: 3 weeks ago   | Permalink
saimthomus | 26 Nov, 2018 05:52 AM
The Cable Matters USB Type-C to HDMI Adapter is explicitly intended to interface the new discharge thin PCs and Ultrabooks to UHD TV, screen, or projector. Associate your PC to a HDTV for top quality video (up to 4Kx2K) and sound spilling or to a HD screen/projector with this compact connector and a HDMI link
Posted: 3 weeks ago   | Permalink

Prev   Next
Cable Matters 107009 480GB Bus-Powered External Thunderbolt 3...     Cable Matters 201055 USB-C to Dual 4K DisplayPort Multiport...

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