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Thread: USB4 spec announced, will be based upon Thunderbolt 3

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    USB4 spec announced, will be based upon Thunderbolt 3

    And the Intel Thunderbolt protocol has been released, it will be royalty-free.
    Read more.

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    I'm a bit (more) confused. So what's the actual difference between a Thunderbolt 3 with type C port and "USB4" with type C? Intel certification?

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    The late but legendary peterb - Onward and Upward peterb's Avatar
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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by Usernamist View Post
    I'm a bit (more) confused. So what's the actual difference between a Thunderbolt 3 with type C port and "USB4" with type C? Intel certification?
    Reading the article, I think that's it. One has Intel certification, the other doesn't.
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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    ill be dead by the time this gets released... too many years to rolls these specs out, then product that supports it.

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by ETR316 View Post
    ill be dead by the time this gets released... too many years to rolls these specs out, then product that supports it.
    But as it’s built on the Thundeebolt 3 spec, there are already Thunderbolt devices that it will support.
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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by peterb View Post
    But as it’s built on the Thundeebolt 3 spec, there are already Thunderbolt devices that it will support.
    And - hopefully - a few companies will take their Thunderbolt 3 devices, rebrand them to USB4 and pass the licensing savings on to the consumer!
    Too naïve? Probably.

    Anyway, since TB3/USB4 will be backwards compatible to USB 3 and 2 I'm sure that we'll see more and more motherboards with multiple USB-C as standard (with maybe one or two legacy USB-A) and we'll see a lot more devices goes USB-C so they can stick 'USB4' on the packaging...

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    I have a laptop at work with a Thunderbolt 3 "dock" so I can have a pair of screens and a proper keyboard and mouse. I hate that pile of junk with a passion, enough that a very expensive i7 laptop now sits idle as I cobbled together a PC using an old AMD FM1 Trinity APU and mini ITX board I had kicking about. Yes that's a noticeable drop in performance, but I'm not constantly swearing at it and can actually get on with my work so productivity is up.

    I can only hope that proper adoption as a USB standard sorts it out.

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    Senior Member AGTDenton's Avatar
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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    This is good news but wouldnt it be better to just do away with USB now?

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by DanceswithUnix View Post
    I have a laptop at work with a Thunderbolt 3 "dock" so I can have a pair of screens and a proper keyboard and mouse. I hate that pile of junk with a passion, enough that a very expensive i7 laptop now sits idle as I cobbled together a PC using an old AMD FM1 Trinity APU and mini ITX board I had kicking about. Yes that's a noticeable drop in performance, but I'm not constantly swearing at it and can actually get on with my work so productivity is up.

    I can only hope that proper adoption as a USB standard sorts it out.
    Gone are thw days of the stamp down port replicators like the lenovos and dells of yore.

    I hate the USB-C and Thunderbolt docks, they never seem to "just work". I always have to faff.

    That and i found the USB-C docks from HP seem to have some weird problem with jumbo frames meaning i could not perform some aspects of my role without my ethernet plugged directly into laptop and not by dock

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by AGTDenton View Post
    This is good news but wouldnt it be better to just do away with USB now?
    And use what instead?

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by ETR316 View Post
    ill be dead by the time this gets released... too many years to rolls these specs out, then product that supports it.
    Any USB and/or Thunderbolt device that has a USB C port should work already. Any Computer that has Thunderbolt 3 support should work already. Windows 10, Mac OS X and Current Linux distros all support Thunderbolt natively. Updating drivers will be easy.

    This will roll out faster than anything we have seen so far because there is really nothing that new to implement.

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by Hoonigan View Post
    And use what instead?
    The power of Satan and his many pixies.

    *evil laugh*

    Or homeopathy. Drop your PC in water and dilute repeatedly until it vanishes. All your connectivity problems will vanish, too.

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    If you want a 40 Gbpa cable more than 0.5 meters long, how much are fibre-optic cables going to cost?

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    And we haven't even got "USB 3.2 20Gbps" with us yet. A stopgap measure? Presumably manufacturers will go straight to USB4 now.

    The driver to cope with all these USB 2-4 standards could be huge.. Plenty of scope for bugs no doubt.

    I only recently got my USB 3.0 add-on card working 100%, after discovering it required an additional 12V power connector.(Discovered that when I purchased a replacement )

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by Quartz View Post
    If you want a 40 Gbpa cable more than 0.5 meters long, how much are fibre-optic cables going to cost?
    Fibre optics aren't necessary, DAC cables like SFP (10gbps) and QSFP (40gbps) exist to quite reasonable lengths but aren't conveniently sized due to no need for portability.

    I implore you to watch this: https://youtu.be/q5xvwPa3r7M

    Linus and co got PCIe 3.0 to 3 metres and if we take the GPU as an 8x speed, that's a potential ~60gbps over 3m and the standard isn't even rated past 50cm.

    Getting copper over reasonable distances at high bandwidth is not difficult but from what i se on my consultancy, 2m is a good target distance. If you need a 5m+ USB cable, you really need to reconsider the base station location.

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    Re: USB4 spec announced, will be based upon Thunderbolt 3

    Quote Originally Posted by Hoonigan View Post
    And use what instead?
    To me Thunderbolt 3 seems the more logical choice. Why advertise 2 standards with the same connector and confuse users who will constantly ask is this USB or T3.

    Draw a line under the sand and merge USB4 into T3.

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