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A comment on Why aren't motherboards mostly USB-C by now? (2021). Parent comment

Re:Why aren't motherboards mostly USB-C by now? (2021) by Aerbil313 on Sunday November 19, 2023 @06:45AM (#38331729)
Rather, the cable became universal and the protocols diverged. But I’m fairly sure the situation will be fixed by the adoption of USB-PD as the ultimate power standard. As all the other standards (QC and else) are including it in their own. And the remaining HDMI devices will be phased out in a decade or so.

Then you’ll need to only care about the wattage rating when charging devices. Seems like future for me.

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Re:Why aren't motherboards mostly USB-C by now? (2021) by necovek on Sunday November 19, 2023 @08:22AM (#38332415)
What about bandwidth? There are 10Gbps, 20Gbps and 40Gbps cables, along with "wattage" (really, amperage/current).

Both will continue to go up.

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Re:Why aren't motherboards mostly USB-C by now? (2021) by aifooh7Keew6xoo on Sunday November 19, 2023 @11:37AM (#38334297)
It's worth noting I suppose that newer USB power delivery standards are scaling voltage rather than amperage/current to deliver more power to the device.

The pins are specified for 1.25A each yielding 5A and I believe the 5A cable specification came at the same time as 20V with the 100W power delivery specification.

Every power increment since then has been a voltage rather than current increment.

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Re:Why aren't motherboards mostly USB-C by now? (2021) by necovek on Monday November 20, 2023 @01:29AM (#38343392)
Good point, I was aware that newer USB-C PD standard offers bigger power delivery (up to 240W, I think), but I didn't know it was achieved through increased voltage.

That means it goes up to 48V DC, so that's certainly curious, thanks!

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