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The iPhone 11 Pro/Pro Max come with USB-C to Lightning cables for fast charging, and the regular iPhone 11 supports them.

Regular Lightning supports HDMI output via an Apple dongle.

Does the USB-C to Lightning cable support HDMI output too? If I were to plug the phone and cable into a USB-C hub, would the hub’s HDMI output work?

If I were to plug the phone via Lightning to USB-C cable directly into a USB-C monitor, would that work?

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No, plugging your Lightning to USB-C cable into a display with USB-C inputs would not allow the iPhone to send video to the display. The Lightning to HDMI adapter actually has a small computer (as in small enough to fit in a single chip) inside to do the HDMI conversion. Here's someone that tore one of those adapters apart: https://boingboing.net/2019/07/29/teardown-of-apples-lightning.html

If you were to connect your iPhone to most USB-C docks then it's not likely to do much but maybe charge your phone. Most USB-C docks rely on the connected host to provide a DisplayPort signal, and the dock has a chip in it (perhaps much like that Lightning dock) to provide the HDMI conversion. Maybe a dock like you describe exists, I just have my doubts.

The Lightning to USB-C cable I have, which is not from Apple, can only charge my iPhone and provide USB 2.0 data to and from my MacBook. I tried plugging in different USB-C devices and it doesn't appear to support attaching anything else.

This brings my own question to this answer and I wonder if an Apple Lightning to USB-C cable be able to do more. It’s advertised as a charging cable and not a high speed data cable so I wonder about USB 3.0 speeds to my MacBook Pro for things like being an internet hot spot, or move files back and forth.

I presume at some speed it would allow me to connect USB-C drive and transfer files.

I'm rather disappointed with the Lightning to USB-C cable I have. I was expecting far more than just a USB 2.0 cable. I was not expecting HDMI out of such a cable, just something more than 12 watts charging and faster USB data than 480 Mbps.

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  • The apple cables are not high speed data but so good work charging. There are quite a few cables though - not every one is the same.
    – bmike
    Dec 16, 2022 at 20:30
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I think you can use the USB-C to USB Adapter which lets you connect iOS devices and many of your standard USB accessories to a USB-C or Thunderbolt 3 (USB-C) enabled Mac and other devices.

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