Second Monitor on iMac.

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iMac users - looking to link ANOTHER monitor to my iMac.
I currently have one running with a HDMI > thunderbolt port
There only seems to be one thunderbolt port on the back on my iMac how can I use an additional monitor?
Thanks.
 
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My iMac is Mid 2011

Both external displays would be AOC -

so currently I have one HDMI > TB

As the iMac has one TB port how would I get my second one going?

Links to products and guides would be great please.
 

Slydude

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Matrox has several products that do this Try this page for some configuration options.
 
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The site above is messed up!

Here's the back of my iMac - the white cable goes to my current AOC - how can I add another please?

xRv3ExC.jpg
 
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Which exact models of monitors do you have? What inputs do they support?
 
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Well you definitely will need a product like Sly suggested. Matrox' website is kinda messed up, but you can get to the product list you need. Actually... if you are running AdBlock or some other Safari extension like Ghostery, that is the problem. Disable the extensions or whitelist Matrox' website. Here's the page to find which products work for your particular iMac:
Matrox Graphics - Products - Which GXM is right for your Mac - Graphics eXpansion Module
 
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Thank you - could you confirm I think this is what I need: Matrox DualHead2Go Digital ME | Multi-Monitors for Laptops

That will "stretch" your Desktop across all monitors, not simply act as a 2nd and 3rd Desktop. I don't know if that's what you intended. Also, it doesn't explicitly say that it's supported on Mavericks. (EDIT: or maybe it will be a 2nd Desktop, but stretched over both displays).

EDIT: Mavericks support is indeed incomplete.
https://discussions.apple.com/message/23518978
 
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