Apple is going with USB C starting with the iPhone 15 so don’t buy lightning cords unless you absolutely have to…doc
What this means is that we should expect a minimum of 20Gb/s, or 2,500MB/s data transfer speeds, and a maximum of 5,000MB/s. Of course, coming close to this bandwidth will depend on a ton of factors, so despite the more expensive models’ USB-C port potentially supporting Thunderbolt speeds, it is unlikely that we will see those results in real-world tests.
Another reason why Apple is making a transition from Lightning to USB-C is thanks to the EU’s new law, which forces technology companies to completely switch over to the new charging port by 2024. While the Cupertino firm has a whole year to bring this port to various products, it appears that Apple wants to be a little earlier than the allotted timeframe.