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by rdl 329 days ago
They are devices that don't do USB PD. Usually it is a USB-A to USB-C cord, and just provides 5V 500mA or higher.
2 comments
Gigachad 329 days ago
It’s not really PD. It’s just they aren’t usb c spec compliant at all. USB-C has the power pins at 0v by default, and you have to signal there is a connected device to activate 5v. While usb-a has 5v hot all the time.

Since there aren’t any active chips in these cables, an A to C cable happens to have 5V hot on the usb c side, but this should not be relied on as it isn’t true for C to C

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lloeki 329 days ago
Some are so not USB-C compliant and just "USB-A wires but with a USB-C plug" that they only charge in one orientation just like USB-A.

We can't have nice things.

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lxgr 329 days ago
PD is optional for USB-C devices, but these out of spec devices don’t even support the basic USB-C resistor-based identification scheme (which is mandatory).
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