M4 iPad Pro external LG Ultrafine Thunderbolt connection

I am struggling to understand why my new 13” M4 IPad Pro will not connect to my LG Ultrafine 5K Monitor using the OEM thunderbolt 3 connection cable, am I right in thinking the M4 iPad Pro does NOT support Thunderbolt 3 and ill need a USB-C connection dongle? If so any recommendations? my M3 MacBook Pro connects without issue. I have tried to Google this but I fell into a rabbit hole.

iPad Pro (M4, 2024)

Posted on Apr 6, 2025 10:56 AM

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Question marked as Top-ranking reply

Posted on Apr 8, 2025 6:00 AM

The iPad Pro M4 USB-C/USB4 port does indeed support Thunderbolt 3:

iPad Pro 13‑inch (M4) - Tech Specs - Apple Support



Assuming that you are in fact using a Thunderbolt 3 cable (ideally of Apple origin), if you are encountering difficulties, you would be best advised to seek assistance directly from Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page.


Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:

https://apps.apple.com/app/apple-support/id1130498044


Although perhaps more difficult due to the bulk of the monitor, you might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to offer assistance:

Genius Bar Reservation and Apple Support Options - Apple

2 replies
Question marked as Top-ranking reply

Apr 8, 2025 6:00 AM in response to an2ony.willis

The iPad Pro M4 USB-C/USB4 port does indeed support Thunderbolt 3:

iPad Pro 13‑inch (M4) - Tech Specs - Apple Support



Assuming that you are in fact using a Thunderbolt 3 cable (ideally of Apple origin), if you are encountering difficulties, you would be best advised to seek assistance directly from Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page.


Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:

https://apps.apple.com/app/apple-support/id1130498044


Although perhaps more difficult due to the bulk of the monitor, you might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to offer assistance:

Genius Bar Reservation and Apple Support Options - Apple

Apr 8, 2025 5:07 AM in response to an2ony.willis

Unfortunately I don't have the right devices to perform a meaningful test.

See if this support article can help you:--> About the Apple Thunderbolt Pro Cables


For any further info/suggestion, since your device is still covered by warranty, I'd contact Apple Support directly and ask them, using this link:--> Contact - Official Apple Support


Regards

Giulio


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M4 iPad Pro external LG Ultrafine Thunderbolt connection

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