4 ms·
interesting, first time I hear that. There are definitely such adapters available on the market. So they are all violating the spec?
by therealmarv 8y ago
interesting, first time I hear that. There are definitely such adapters available on the market. So they are all violating the spec?
- crgwbr 8y agoYes. Since USB-C devices can draw significantly more power than USB-A can supply, any USB-C device into USB-A port adapters are disallowed.
- akavel 8y agoUh? Then how do I plug my USB-C Samsung phone into an USB 2.0 A port on my laptop with an official Samsung cable found in the phone's box? Do I misunderstand something? Is the cable "illegal"?
- anilakar 8y agoThe real reason is to prevent hooking up two dumb Type-A host side power supplies, as I pointed out in another post. A properly implemented Type-C device will not draw high currents without power negotiation. (I'm looking at you, Nintendo)
- mbreese 8y agoCable not adapter. IIRC a cable is okay but the adapter version is not. Like mentioned above/below, this is to prevent other USB-A things from causing problems. When you have a fixed cable, you remove a lot of the potential issues for misuse.
- deleted 8y ago[deleted]
- anilakar 8y agoAny adapter that has a USB-C receptacle is prohibited by the standard. This limitation exists to prevent hooking up two USB-A hosts with a USB-C cable.
- tropo 8y agoThis is pointless: Cables with USB-A on both ends have been available for many years.