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Specifications and performance - Apple iMac with 4K Retina display (21.5- inch, Late 2015) review | TechRadar
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Refurbished (Good) - Apple iMac (Retina 4K, 21-inch, Late 2015) MK452LL/A 3.1GHz Core i5 / 8GB / 1TB HDD Mac OS X A Grade | Best Buy Canada
Actualización de RAM y Disco duro SATA de Mac Intel 21.5" Retina 4K Display (2017) - Guía de reparación iFixit
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Late 2015 Apple iMac with Retina 4K display and 3.1 Intel Core i5 (21.5 inch, 8GB RAM, 1TB HDD) (Renewed) : Amazon.co.uk: Computers & Accessories
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