this post was submitted on 24 Sep 2024
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Has anyone ever seen a "10A" USB-C cable and can tell what their purpose is? (www.youtube.com)
submitted 2 months ago by tia@lemmy.world to c/technology@lemmy.world
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cross-posted from: https://lemmy.world/post/20128020

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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[–] SirDerpy@lemmy.world 14 points 2 months ago* (last edited 2 months ago) (1 children)

48V, 10A at 6 feet or less length requires 16awg wire for <=3% loss (which is the critical appliance standard rather than the more lax <= 10% used for most DC circuits). That's a wire with a conductor diameter of 1.3mm ~= 0.05in.

The cable probably isn't 10A rated. But, it's not an overly thick wire to get it done. Most of the girth is insulation and shielding.

This is overly simplified. And, I didn't care to watch the video.

edit: replaced mistaken > with <