Why this answer matters
Data speed and DisplayPort video capability are different parts of the USB-C feature set. A slow USB data interface does not automatically mean the iPad cannot drive a 4K display.
2 requirements3 verification steps1 primary source
Requirements
What has to be true
- Video-capable USB-C cable/adapter.
- Display input that supports the desired mode.
Verify it yourself
Use this test sequence
Change one variable at a time so you know which requirement made the difference.
- 1
Test direct to the display with a known video-capable cable.
- 2
Check the display input selection.
- 3
Do not use a file-transfer benchmark to judge DisplayPort capability.
Limits
What this answer does not prove
- Adapters can impose lower resolution/refresh limits.
- USB 2 data remains the model's data ceiling.
Relevant DeviceOK checks
Test the part you can observe
Screen Resolution TestShow browser viewport, screen dimensions, and device pixel ratio.
→Monitor Refresh Rate TestEstimate display refresh timing using animation frames.
→USB-C Display Path Readiness CheckCheck four documented prerequisites for sending video through USB-C, Thunderbolt, a dock, cable or adapter to a display.
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