Comment on Apple 15 relegated to USB 2.0 unless you buy the Pro
iminahurry@discuss.tchncs.de 1 year agoBro, you don’t really know anything about USB
The port being USB-C has nothing to do with USB 3.0
The port supporting fast charging has nothing to do with it being USB 3.0
Unless you have transferred data over the wire and seen USB 3 speeds, you can’t claim it to be USB 3 based on circumstances alone.
On the other hand, I can totally imagine that 99% people never transfer any data over the wire anymore. Airdrop is fast and convenient if you have a Mac and other solutions exist if you don’t. You can easily get 10 MBps+ transfer rates over Wi-Fi and that works fine for most people, if they ever need to transfer data over to a PC anyway. So I’m guessing Apple just took what majority would accept and went with it, just like any other company does these days.
Kolanaki@yiffit.net 1 year ago
Really now?
__dev@lemmy.world 1 year ago
It’s a little complicated. A USB-3 connection must provide higher current 900mA than a USB-2 connection 500mA. As such a USB-3 data connection can charge faster than a USB-2 connection - some people may call this “fast charging”.
However USB-PD (Power Delivery, aka fast charging) was released as part of the USB 3.1 specification, but it does not require a USB-3 data connection and neither does a USB-3 data connection require USB-PD. You can see all the different USB-C modes on Wikipedia as well, where USB-2 and Power Delivery are listed separately: en.wikipedia.org/wiki/USB-C#USB-C_receptacle_pin_…
iminahurry@discuss.tchncs.de 1 year ago
That’s the part you are missing. Modern charging doesn’t use standard USB power. That’s the whole fast charging landscape is addressing.
Read this www.androidcentral.com/qualcomm-quick-charge
The power brick can supply more than 5 V over a standard USB port because it’s not adhering to USB standards for supplying power. As a result, data and power are decoupled, allowing the power brick to supply more than a standard USB port over a connector and cable which are identical to USB ports and cables.