I found it at the dollar store.

  • Kalash
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    2 years ago

    To connect two USB-A ports.

    Basically the same as a USB-A to USB-A cable, just really short.

    • @[email protected]
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      242 years 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.

      • big_bangus
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        12 years ago

        They do exist, despite the USB standards not allowing them

        See: cheapo video capture card for work, other side is just HDMI-IN and OUT

        They shouldn’t exist but don’t mean they don’t when you get the cheapest little devices you can find

        • @[email protected]
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          2 years 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.

      • @[email protected]
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        32 years 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.

          • @[email protected]
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            32 years 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.

      • @[email protected]
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        2 years ago

        USB-A to USB-A doesn’t exist

        *looks at old charger from an American device*

        HOLY SHIT A CRYPTID CALL SCP

      • @[email protected]
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        2 years 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.

      • Kalash
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        162 years ago

        USB-A to USB-A cables do not exist

        wtf are you talking about, of course they do.

        • @[email protected]
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          2 years ago

          They meant cables in spec with the USB specification at the time usb-a was new.

          Now with usb-c, it’s kinda moot, as most cables are male to male anyway… of course that means we’re more likely to see USB-C female to female adopters now

          • @[email protected]
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            52 years ago

            USB-C female to female adapters also are out of spec. The USB standard does not allow for extensions. USB cables only have male connectors (with the exception of USB-OTG dongles).

      • squiblet
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        12 years 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.

        • @[email protected]
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          2 years 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.

  • @[email protected]
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    2 years ago

    Don’t think of it as a tiny cable, think of it as a gender bender. You can put on the end of some female cable.

    You’re more likely to see dongles like this at fixed installations. Like somebody puts a USB port into a wall, like a speaker’s podium, or a presentation stand. So one side is fixed, depending on what you want to hook up to it, you might need to have a gender bender.

      • @[email protected]
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        702 years ago

        USB is bi-directional. So it really doesn’t care about the plug gender. Some other protocols are directional, then the plug gender is very important, so adapters for directional protocols tend to be more expensive, it may even require external power.

        Once USB on the go was invented it cease to matter at all.

      • @[email protected]
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        22 years ago

        double ended dildo

        Isn’t that just a gender bender for women? Now we just need a double ended fleshlight for equality… And no I’m not going to google that!

      • @[email protected]
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        282 years ago

        As long as the double ended dildo provided low impedance electrical through ways, and distinct electrical paths for at least four conduits, with minimal capacitive cross talk… then yes

        • @[email protected]
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          162 years ago

          I like you and your style. Do not let a stupid dirty joke get in the way of proper electrical and data connections. It tells me where your priorities are and I respect that.

  • @[email protected]
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    12 years ago

    I had an old Medion digital camera that used USB-A - USB-A cable for synching with PC.

    This could be a shorter version of it, tho idk why would anyone use this for thus purpose, would be awkward

  • @[email protected]
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    Such A-to-A adaptors and cables always have been prohibited by the USB spec, but people built them anyway. A common usecase for “illegal” A-A cables i remember was connecting PCIe cards (especially GPUs and mining cards) externally to riser sockets.

  • Bruno Finger
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    2 years ago

    I have a cheap HDMI capture device that takes in video input, exposes it to the computer as a regular webcam, and then outputs it back to HDMI. It gets the job done.

    It uses an USB male to male for power, and a regular one for data.

    That said, not sure how a short one like that would help.

  • slazer2au
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    12 years ago

    So you have 2 USBC devices you want to connect together, a laptop and a phone for example, but for some reason you can’t find your USBC to USBC cable but you do have 2 USBC to USBA cables.

    Well by breaking the USB specifications you can connect the 2 cables together to make a janky USBC to USBC cable.

    Alternatively you can get single circuit boards with USBA ports on them and you can use this jank of an adaptor to link them together.

  • @[email protected]
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    522 years ago

    I’ve used them for extension, as it allows you to attach a second, regular USB cable to it.

    • iAmTheTot
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      142 years ago

      Well, what do you mean by “regular”? The cable would need to be female on at least one end, which I usually see in… USB extension cables.

    • @[email protected]
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      392 years ago

      Yeah, these kinds of little gendered connectors seem pointless until you absolutely need them for something specific then they’re priceless.

    • @[email protected]
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      92 years ago

      Not that you probably need to know this, but for some other stranger: there’s a max functional length to USB cables. At work I remember pulling my hair out troubleshooting a printer until we swapped cables for something shorter.

      • @[email protected]
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        62 years ago

        That said, there are “active” USB extension cables which draw current from the power lines and use it to boost the signal along the data lines

      • @[email protected]
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        92 years ago

        And that max length goes down with each coupling.

        We have smart boards in most classrooms, but in an entire wing of my department the smart board doesn’t work. Reason? When we built the wing, 8 or 10 years ago, the installers fitted their own low grade plugs on the USB connection for the boards, before figuring out that they snipped the cables too short. Instead of running new cabling the installers then introduced another extension.

        Nobody cared to check it out before accepting delivery and my complaints went unheard by management, until it was too late to RMA it.

      • Polar
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        22 years ago

        Meanwhile I have 25ft cables running my large format vinyl printers lol

        • @[email protected]
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          22 years ago

          My large format vinyl printer uses Ethernet. TIL there are USB vinyl printers. What kind of printer do you have? Latex 260 here

          • squiblet
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            02 years ago

            We had a 53" US Cutter and it attached to the computer by USB. If we’re talking about the same thing.

            • @[email protected]
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              2 years ago

              He said printer though that’s what’s what threw me off. That’s a cutter. My bad I thought he was talking about a USB large format printer, I only replied because I’m looking for a slightly smaller printer for my smaller decals, and I’d be interested in a serial or USB printer.

              My PC is in the basement and I’ve got USB and serial going everywhere running different cutters, 3d printers, CNC, etc upstairs and down, also in the garage. Works great.

  • RHOPKINS13
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    92 years ago

    I actually have a APC UPS at work that uses a USB-A to USB-A cable. You can look up the cable online, it’s part number 940-0504. I was surprised APC used such a cable. I think if you tried to do something dumb like connect two PCs together with it, one of the USB ports would fry.

  • Monkey With A Shell
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    82 years ago

    Not one that short but I do have A to A cord like that in use. In my case it’s with a KVM that I lost and AC adapter for but found that if I plugged in to one of the rear console connections it could get it to power on from the USB device. Cable it to a USB charging port on the front of one of the UPS and away it goes.