iMac 21.5 - Extending/Adding Monitors

Discussion in 'iMac' started by dcasey628, May 31, 2010.

  1. dcasey628
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    macrumors newbie

    Mar 22, 2010
    I have a 2010 21.5'' iMac. I know you can add a single external monitor to it. I was wondering however, if you could add a second monitor to have a total of 3 screens (iMac + 2 monitors). If so, how can this be accomplished?

  2. Xenc
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    macrumors 6502a


    May 8, 2010
    London, England
    Unfortunately your iMac is only able to support one external monitor. However, you can use third party hardware to split the iMac's signal over two or more devices. The only one I've been able to find that is compatible with DisplayPort is the Matrox DualHead2Go, which would set you back about £160.
  3. kellen
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    macrumors 68020


    Aug 11, 2006
    Seattle, WA
    They make USB adaptors for adding more monitors. Search for USB display adaptor.

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