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Apple iPhone 15 relegated to USB 2.0 unless you buy the Pro
(www.pcgamer.com)
This is a most excellent place for technology news and articles.
USB-C is a connector and, by itself, says nothing about the protocol in use. That’s the important part.
5Ghz wifi and Airdrop is what Apple wants people to use. I stopped connecting a USB cable except for doing a physical backup with iMazing on this 256GB model. I just trust the hard line more when making a 232GB backup.
Source: https://www.tomshardware.com/news/usb-3-2-explained
Source: https://www.convertunits.com/from/Gbps/to/MB/s