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USB Cylinder

  • 16-11-2009 02:35PM
    #1
    barneysplash
    Closed Accounts Posts: 1,205 ✭✭✭


    Hello all

    I was wondering if anyone knows what the small cylinders you get on
    usb cables and monitor cable are for.

    These are usually towards one end of the cable.

    I opened one with a pliers at the weekend, and all there is inside
    it is a metal cylinder, like a magnet but it does not appear to be magnetic.

    So what are they needed for?

    Thanks

    Barney


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