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Cake day: July 31st, 2023

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  • s_s@lemm.eetoTechnology@lemmy.worldSome basic info about USB
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    2 months ago

    Well if there’s anything I expect from the new-cycle masses, it’s rationality.

    Heaven forbid, we try and do better!

    I guess I should just read the whitepapers of every standard going forward, silly me.

    You don’t have to read whitepapers to know the difference between Ethernet, CAT6 and RJ45 even if your grandpa doesn’t know the difference.

    It’s not too much to expct the “nerds” to know the real names of PAN connections, too.



  • s_s@lemm.eetoTechnology@lemmy.worldSome basic info about USB
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    2 months ago

    the history of renaming everything so many times.

    Every time a new USB spec comes out the version number goes up. A new spec comes out because they add more features. The spec is a whitepaper that explains all the features. It’s a “The King is dead, long live the king!” situation.

    If you just never used the version numbers to mean something that they never meant (transfer speeds) then literally none of this is confusing.

    They’ve officially renamed the transfer speeds one time after people made a big huff. here’s how they changed:

    • USB SuperSpeed -> USB 5Gbps

    • USB SuperSpeed 10Gbps -> USB 10Gbps

    • USB SuperSpeed 20Gpbs -> USB 20Gbps

    And If you can’t follow along with that, I’m really, really sorry. There’s not much I can do from a internet discussion board. XD


  • s_s@lemm.eetoTechnology@lemmy.worldSome basic info about USB
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    2 months ago

    the whole USB 3.2 Gen 2 2x2 (hands of blue) bullshit

    If you’re not trying to wire your own USB port you can just use the recommended names “USB SuperSpeed 20 Gbps” or “USB 20 Gbps”. You don’t have to be confused by technical names if you don’t want to be.

    The real bullshit is between your ears–you and only you can fix it.


  • s_s@lemm.eetoTechnology@lemmy.worldSome basic info about USB
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    2 months ago

    480mbps

    A device or port that does 480mbps transfer speeds is a “Hi-Speed” device/port. That’s the real name and always has been.

    It doesn’t matter what version of the USB spec it was certified under. If it was designed between 2000 and 2008 it was certified under USB 2.0 or 2.1

    If that device was certified between 2008 and 2013 then it was certified under USB 3.0. That absolutely doesn’t make it a “SuperSpeed” device/port, but that’s more than clear when we use the real names.



  • s_s@lemm.eetoTechnology@lemmy.worldSome basic info about USB
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    2 months ago

    They’re bad because manufacturers want to pass their usb 2.0 gear as “usb 3.0 compliant”, which it technically is, and their usb 3.0 gear as “usb 3.2” because 3.2 Gen 1x1 is also 5gbps.

    The USB X.X is just the version of the standard and doesn’t mean anything for the capabilities of a physical device.

    When a new standard comes out it superceeds the old one. Devices are always designed and certified according to the current standard.

    Soooo…What are you talking about?