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submitted 8 months ago* (last edited 8 months ago) by tester1121@lemmy.world to c/android@lemmy.world

I like carrying around one USBC to C cable for my devices, but I don't want to carry around a USBC to A cable for other ports. Is there a dongle that takes a USBC cable and converts one end into USBA? I need it to support at least 15W.

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[-] chaorace 15 points 8 months ago* (last edited 8 months ago)

First thing's first: all such adapters should be considered evil by default. The only way to make a compliant adapter is with active circuitry in the adapter essentially providing an entirely standalone USB controller interface.

With that being said, here's an adapter which does exactly that. Back when I researched this topic in October I found that the linked adapter is essentially the only one of its kind on the market right now.

[-] maniel@lemmy.ml -1 points 8 months ago

Yeah, those are CONSIDERABLY bigger than USB A to USB C dongles

[-] chaorace 5 points 8 months ago* (last edited 8 months ago)

Like I said: in order to do it the non-evil way you need to cram in an onboard USB chip. Female USB-C from a Male USB-A plug-in is explicitly not possible to implement in a spec-compliant manner because of the pinouts.

You can brute-force a smaller passive adapter like those online but it's a devil's bargain. Nobody targets these janky adapters when designing products. USB-C things will just break without any rhyme or reason because you're fundamentally breaking the hardware contract and "lying" about the capabilities of your port.

this post was submitted on 02 Jan 2024
43 points (97.8% liked)

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