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iPhone 16 Storage
(lemmy.world)
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this post was submitted on 10 Sep 2024
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No, it is only data. USB 2.0, 3, 4 refer to data speed. USB A/B/C refer to connector shape. There are min/max wattages associated with both of those, but USB Power Delivery is yet another USB spec that supersedes those limits, and it only requires USB on the power supply. That’s why USB-PD works on iPhones with Lightning ports, and why 140W power on MacBooks works through MagSafe (and not USB-C). Apple associates USB-C with charging speed to differentiate their charging cables, but the spec is about the connector, not speed. Though it never caught on, even a USB-A charger could deliver up to 100W via USB-PD 1.0. The first few Galaxy Z Flip models only supported USB 2.0, didn’t affect fast charging, and no one noticed.