this post was submitted on 10 Sep 2024
65 points (89.2% liked)
Apple
17241 readers
1 users here now
Welcome
to the largest Apple community on Lemmy. This is the place where we talk about everything Apple, from iOS to the exciting upcoming Apple Vision Pro. Feel free to join the discussion!
Rules:
- No NSFW Content
- No Hate Speech or Personal Attacks
- No Ads / Spamming
Self promotion is only allowed in the pinned monthly thread
Communities of Interest:
Apple Hardware
Apple TV
Apple Watch
iPad
iPhone
Mac
Vintage Apple
Apple Software
iOS
iPadOS
macOS
tvOS
watchOS
Shortcuts
Xcode
Community banner courtesy of u/Antsomnia.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
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.