Dell U2412M w iMac. What's the USB for?

Discussion in 'Mac Accessories' started by violetcrumble, Dec 21, 2012.

  1. macrumors newbie

    Feb 22, 2011
    Based on hours of research and forums on user experience, ordered the U2412M. Display is here, and I expect the mini-display to DVI adapter will make it go (or I'll be back here trying to figure out why not! :)

    One thing I don't understand is why the USB connection is required. Never needed USB for any other external display. What's the diff if it's used or not?

  2. macrumors 68030

    Dec 24, 2010
    Olympia, WA
    It has a USB hub on it, doesn't it? Other than that maybe the software brightness control?
  3. macrumors 604


    Jul 4, 2008
    Silicon Valley
    Display has a 4-port USB 2.0 hub. The USB connection just allows the hub to interface with your computer. You don't need it if you choose not to use the hub feature.

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