![Apple's 4K 21.5-Inch iMac Allows You to Upgrade RAM and CPU – Company Finally Dialing Down on Soldered Components, Reveals Teardown Apple's 4K 21.5-Inch iMac Allows You to Upgrade RAM and CPU – Company Finally Dialing Down on Soldered Components, Reveals Teardown](https://cdn.wccftech.com/wp-content/uploads/2017/06/4K-21.5-inch-iMac-teardown-2.jpg)
Apple's 4K 21.5-Inch iMac Allows You to Upgrade RAM and CPU – Company Finally Dialing Down on Soldered Components, Reveals Teardown
![Apple iMac with 4K Retina display (21.5-inch, 2015) review: Apple packs more pixels into its smallest iMac - CNET Apple iMac with 4K Retina display (21.5-inch, 2015) review: Apple packs more pixels into its smallest iMac - CNET](https://www.cnet.com/a/img/resize/c4cfb8553a1fe167bf1dcab91ede8365229ae603/hub/2015/10/09/54f1edc6-361b-4d74-be8f-b80c9272e8f2/apple-imac-with-4k-retina-display-21-5-inch-2015-22.jpg?auto=webp&fit=crop&height=900&width=1200)
Apple iMac with 4K Retina display (21.5-inch, 2015) review: Apple packs more pixels into its smallest iMac - CNET
![Amazon.com: Apple iMac MNDY2LL/A 21.5 Inch, 3.0GHz Intel Core i5, 8GB RAM, 1TB HDD, Silver (Renewed), macOS High Sierra : Electronics Amazon.com: Apple iMac MNDY2LL/A 21.5 Inch, 3.0GHz Intel Core i5, 8GB RAM, 1TB HDD, Silver (Renewed), macOS High Sierra : Electronics](https://m.media-amazon.com/images/I/51PsRlQhWlL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Apple iMac MNDY2LL/A 21.5 Inch, 3.0GHz Intel Core i5, 8GB RAM, 1TB HDD, Silver (Renewed), macOS High Sierra : Electronics
![Amazon.com: Late-2015 Apple iMac 21.5 with 4K Retina Display/3.1GHz Intel Core i5-5675R Quad-Core (21.5-inch, 8GB RAM, 1TB) (Renewed) : Electronics Amazon.com: Late-2015 Apple iMac 21.5 with 4K Retina Display/3.1GHz Intel Core i5-5675R Quad-Core (21.5-inch, 8GB RAM, 1TB) (Renewed) : Electronics](https://m.media-amazon.com/images/I/61Kimc4ZXPL.jpg)
Amazon.com: Late-2015 Apple iMac 21.5 with 4K Retina Display/3.1GHz Intel Core i5-5675R Quad-Core (21.5-inch, 8GB RAM, 1TB) (Renewed) : Electronics
![Amazon.com: Late-2015 Apple iMac with 2.8GHz Intel Core i5 Quad-core (21.5-Inch, 8GB RAM, 1TB) (Renewed) : Electronics Amazon.com: Late-2015 Apple iMac with 2.8GHz Intel Core i5 Quad-core (21.5-Inch, 8GB RAM, 1TB) (Renewed) : Electronics](https://m.media-amazon.com/images/I/61XD1dMZgnL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Late-2015 Apple iMac with 2.8GHz Intel Core i5 Quad-core (21.5-Inch, 8GB RAM, 1TB) (Renewed) : Electronics
![A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com](https://m.media-amazon.com/images/I/81nGVWBljCL.jpg)