this post was submitted on 12 Nov 2023
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[–] Astronaut_M_Dexter 70 points 1 year ago (4 children)

Thank you, USB-C (and the EU too).

Well, some stuff still has dedicated adapters, but hopefully those phase out sooner or later.

[–] [email protected] 8 points 1 year ago (2 children)

As USB gets upgrades to provide more power, we will need those barrel jacks less and less. My laptop can only charge 65W from USB C, but 130W from the barrel jack. It's a couple of years old now, I think from before there was a standard for USB to provide over 100W, but USB C can provide 240W now. So new laptops shouldn't even need barrel jacks anymore.

[–] [email protected] 2 points 1 year ago (4 children)

I don’t know how I feel pumping 240 W through these flimsy wires. I know it’s probably alright, but still… it doesn’t look like it’s meant to take 40 amps.

[–] [email protected] 8 points 1 year ago (1 children)

I recently ordered several 240W PD USB-C cables and you should rest assured, they are chonkier

[–] [email protected] 4 points 1 year ago

Thanks for the info!

[–] [email protected] 6 points 1 year ago (1 children)

I think if a device follows the standard, the 240 W mode should use 48 V * 5 A - still more than you'd use with normal USB cables, but less insane than 12 V * 20 A

[–] [email protected] 1 points 1 year ago

I was guesstimating 40A × 5V. Your numbers sound reasonable!

[–] uis 2 points 1 year ago

It's only 5 amps, not 40. Magic of increased voltage.

[–] [email protected] 2 points 1 year ago

If the cable is USB-IF certified you can trust it.

[–] [email protected] 1 points 1 year ago (1 children)

You still need the PSU brick cable part to generate that kind of power.

[–] [email protected] 7 points 1 year ago (1 children)

Just because they'll be able to physically connect and give a non zero amount of power, doesn't mean they won't be obsolete.

[–] [email protected] 1 points 1 year ago

Hell of a lot easier to adapt USBC to USBD or whatever the next standard is.

[–] [email protected] 1 points 1 year ago

Well, if the issue is just whether the adapter is inside or outside the stuff