I found it at the dollar store.

  • BorgDrone@lemmy.one
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    1 year ago

    USB-A to USB-A cables do not exist, the USB standard does not allow them, if you have a cable with two USB-A connectors then it’s not actually a certified USB cable. The same goes for USB extension cables and this adapter. Note how there isn’t a ‘USB certified’ logo on the package.

    • Kalash@feddit.ch
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      1 year ago

      USB-A to USB-A cables do not exist

      wtf are you talking about, of course they do.

    • SpaceNoodle@lemmy.world
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      1 year ago

      The cables exist; they just don’t follow the standard. I’ve used them when developing consumer electronics: the host controller on the device switches to device mode in the bootloader, allowing a host machine to connect and debug/flash the device.

    • guidedlight@lemmy.world
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      1 year ago

      USB-A to USB-A cables do exist.

      I have seen many (very cheap) peripherals use USB-A sockets. I figure those sockets must be a few cents cheaper than alternatives.

        • ninjan@lemmy.mildgrim.com
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          1 year ago

          China stuff loves to slap logos on there that do not apply, so probably without having seen this particular abomination myself. Fake CE markings are super common though.

    • DrQuint@lemm.ee
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      1 year ago

      USB-A to USB-A doesn’t exist

      *looks at old charger from an American device*

      HOLY SHIT A CRYPTID CALL SCP

      • BorgDrone@lemmy.one
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        1 year ago

        They do exist, despite the USB standards not allowing them

        A USB cable is a cable that conforms to the USB specification. If a cable does not conform to the USB specification then it isn’t an USB cable by definition

        I’m not saying a cable with 2 USB-A style connectors doesn’t exist, I’m just saying that it is not a USB cable. Just like a glass of Pepsi is not a glass of Coca-Cola even though it may look like one.

    • squiblet@kbin.social
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      1 year ago

      It’s not hard to imagine a product that would require one, though. It’s how every phone charging cable works, just with a different size male USB on one end.

      • BorgDrone@lemmy.one
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        1 year ago

        It’s how every phone charging cable works, just with a different size male USB on one end.

        No, it’s exactly not how every phone charging cable works, at least not for non USB-C cables.

        Pre-USB-C cables are explicitly unidirectional. In USB there are ‘hosts’ (usually computers) and ‘devices’ (flashdrives, camera’s, mice, keyboards, etc.). The host side always has a female USB-A connector, a device either has a female USB-B connector (if it’s intended to be used with a cable), or a male USB-A (if it’s intended to be plugged in directly into a host, like a flash drive). A real, standard-conformant USB cable can only go from USB-A male to USB-B male (with the addition of USB-C, it can also go from A-to-C, from C-to-B, or C-to-C). Never A-to-A or B-to-B, extension cables (male to female) of any type, A, B or C, are not allowed either.

        USB was specifically designed like this so you can never connect a device to a device or a host to a host.

        On the host side, you pretty much only see full size USB-A ports. On the device side there are 3 common types of USB-B ports: standard size (you can for example see these on printers and scanners), mini-USB-B used a lot on older phones, and later micro-USB-B. On each side the male part is on the cable, the female part is on the host or device.