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Amazon.com: Late-2015 Apple iMac with Retina 5K/3.2 GHz Intel Core i5 (27- Inch, 8GB RAM, 1TB) (Renewed) : Electronics
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How to upgrade the memory of a 27-inch iMac with Retina 5K display (Late 2014 - Mid 2015) iMac15,1 - YouTube
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Apple iMac with 4K Retina display (21.5-inch, 2015) review: Apple packs more pixels into its smallest iMac - CNET
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