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submitted 2 months ago by lukstru@lemmy.world to c/asklemmy@lemmy.world
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[-] Creat@discuss.tchncs.de 5 points 2 months ago* (last edited 2 months ago)

Scroll down a bit in this article. There's a list of what each of the available keys are required to provide. A "key" in this context is basically a notch in a certain location, which then defines the meaning of the various pins of the connector. Some devices have multiple keys, as some of the specifications have a common subset. Like key A+E is common, because E provides almost everything that A does, so a device that only requires the common interfaces can work in both. Cars that rely on one of the exclusive interfaces will have the specific key of course. This A+E communication is often used for WiFi cards.

Sockets always only have one key though, for obvious reasons.

Edit: correction/clarification

this post was submitted on 26 Sep 2024
78 points (95.3% liked)

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