Has anyone ever seen such a "10A" cable and can tell what their purpose is? (www.youtube.com)

submitted 3 days ago by [email protected] to c/[email protected]

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The video dissects a USB-C cable marked with a 10A rating even though there is no such rating in the standard.

It would be interesting what this is meant for, as I've never seen a device with such a rating?

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[-] [email protected] 0 points 3 days ago* (last edited 3 days ago)

It means it does 10 Ampère charging. It's part of the USB 3.2 spec.

[-] [email protected] 4 points 3 days ago

Is it? I think USB 3.2 only goes up to 20V 5A for 100 watts of power. I don't think 10A is in the spec.

This cable also turns into a heater at 10A, so I don't think it can do it for long. You need a pretty thick cable for 10A, 3 times as big as you need for 5A. So cheap Chinese cables won't do 10A even if they use copper instead of CCA.

[-] [email protected] 2 points 3 days ago

Pretty much what I expected, but I don't think they care to much about that

[-] [email protected] 2 points 3 days ago

Where? I can't find any reference to any device being allowed to draw 10A: https://en.wikipedia.org/wiki/USB_hardware#Allowable_current_draw

this post was submitted on 24 Sep 2024

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