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Thread: USB 2.0 Cables

  1. #1
    New Lounger
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    USB 2.0 Cables

    As a (sort of) follow-on to Post 279527:
    Local dealers sell cables that are marked as "USB 2.0". Are these cables different in some manner from their 1.0/1.1 cousins? The connectors are obviously the same.

    Current mobos offer up to 8 USB ports? Should I use these ports (root level) on a one-per-device basis or would it be better to employ only one or two along with an expansion hub - powered of course?

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    Plutonium Lounger Leif's Avatar
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    Re: USB 2.0 Cables

    I understand that USB2 cables are screened, so although they may look the same outwardly, they are constructed differently and to a higher quality.
    (Similar to the differences between CAT5 and CAT6.)

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    Re: USB 2.0 Cables

    I can see no reason to buy a Hub when you have plenty USB ports to use. I personally use one device per Port, but they are setup to use several devices per port. They say up to 127 devices per port.

    WWWBoard: Message 370 :
    There is no difference between the outward physical apperance of a USB 1.1 and a USB 2.0 cable.
    The connector ends of both versions look the same.
    USB 2.0 devices require revision 2.0 cables.
    A very high quality USB 1.1 cable will support a USB 2.0 device.
    Unfortunately, there was NO standard for certifying USB 1.1 cables. Therefore, some USB 1.1 cables are not capable of supporting USB 2.0 devices.
    Certified USB 2.0 cables work with ALL USB devices.
    Poor quality cabling is the leading cause of USB 2.0 device failure.
    If you are having problems with a USB 2.0 device and are unsure of the cable, buy and use a revision 2.0 USB cable

    I ALSO FOUND iNFORMATION THAT SAID THERE WAS NO DIFFERENCE and that it was all in the quality of the Cable.

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    Re: USB 2.0 Cables

    Is it still possible to buy USB 1.1 cables?
    <font face="Script MT Bold"><font color=blue><big><big>John</big></big></font color=blue></font face=script>

    Ita, esto, quidcumque...

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    Re: USB 2.0 Cables

    OK I have read everything I can find. Accoding to the people who test these things, the only difference in the Cables is the Inner and Outer Shields. Good Belkin 1.1 USB cables have these shields and will work with 2.0 just as good as anything labled 2.0 Cables. Another words it's the same wires but they are Shielded against Interference of the higher speed..

    This is a quote from a guy on USB Webb Site USB Webb Site
    John:: I worked at Intel in the team that co-wrote the USB 2.0 specification. In USB 1.0/1.1, the cables were way over engineered, so when the signaling rate was increased to 480 MHz, the cables could handle it. So, if a cable is compliant with regards to USB 1.1, it is compliant to USB 2.0

    Another Quote same USB Webb Sit:o USB 1.1 cables work with USB 2.0 devices?
    Ideally, yes. USB 2.0 architecture uses the same cables and connectors as USB 1.1 compliant products. Unforunately, a recent independent testing firm indicated that only 3 out of 11 cables on the market in June of 2002 are certified as USB 1.1 compliant. You may run into the cables that cause problems connecting high-speed peripherals. To avoid negative user experience, most vendors include USB 2.0 compliant cables with their USB 2 PCI cards and peripherals.

    Another words it all has to do with Compliance { Shields}

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    Uranium Lounger viking33's Avatar
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    Re: USB 2.0 Cables

    Cowboy,

    You are right, I think your words "good quality' is the key here. Quality cable manufacturers will over-engineer their products and thus they will have no problem with 1.1 cables meeting 2.0 specs.

    The real problem makers are the "cheapo" cables with light guage wires and something like 50% braid shielding in them.
    If you pay a few more cents for a better quality cable it's well worth it. You get what you pay for , goes the old saying. <img src=/S/bravo.gif border=0 alt=bravo width=16 height=30>

    Bob
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    Re: USB 2.0 Cables

    Yes, they will say USB 1.1 Compliant. See this Provantage Also notice in the Spec list it says Shieled. and works with 1.0 or 2.0

    Also Here Notice it says Shielded.

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    Re: USB 2.0 Cables

    As Viking stated it's all about Quality, and of course Compliance.

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