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How to link iMac (Retina 4K, 21.5 inch, late 2015) as a display for Macbook Air (13 inch, early 2015)

Looking to link up a MacBook Air (13-inch, early 2015 model) to an iMac (Retina 4K, 21.5 inch, late 2015 model) as a display. Please can anyone let me know the exact cables I need? Not a tech person so would appreciate it in very simple terms / link to where I can buy! Thankyou 

Posted on May 11, 2020 2:22 PM

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Posted on May 11, 2020 3:06 PM

Use your iMac as a display with Target Display Mode - Apple Support indicates that iMac models after 2014 can no longer be used in Target Display Mode. Also, see Use Mac notebook computer in closed-display mode with an external display.

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How to link iMac (Retina 4K, 21.5 inch, late 2015) as a display for Macbook Air (13 inch, early 2015)

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