![Adamanta 32GB (2x16GB) Memory Upgrade Compatible for 2017 Apple iMac 27" Retina 5K Display DDR4 2400MHz PC4-19200 SODIMM 2Rx8 CL17 1.2v Dual Rank RAM DRAM at Amazon.com Adamanta 32GB (2x16GB) Memory Upgrade Compatible for 2017 Apple iMac 27" Retina 5K Display DDR4 2400MHz PC4-19200 SODIMM 2Rx8 CL17 1.2v Dual Rank RAM DRAM at Amazon.com](https://m.media-amazon.com/images/I/81xioqzNnaL.jpg)
Adamanta 32GB (2x16GB) Memory Upgrade Compatible for 2017 Apple iMac 27" Retina 5K Display DDR4 2400MHz PC4-19200 SODIMM 2Rx8 CL17 1.2v Dual Rank RAM DRAM at Amazon.com
![CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I3 3.06 21.5-Inch (Mid-2010) - A28 at Amazon.com CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I3 3.06 21.5-Inch (Mid-2010) - A28 at Amazon.com](https://m.media-amazon.com/images/I/71zgz0dAVbL.jpg)
CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I3 3.06 21.5-Inch (Mid-2010) - A28 at Amazon.com
![iMac "Core i5" 2.8 21.5" (Late 2015) Specs (Late 2015, MK442LL/A, iMac16,2, A1418, 2889): EveryMac.com iMac "Core i5" 2.8 21.5" (Late 2015) Specs (Late 2015, MK442LL/A, iMac16,2, A1418, 2889): EveryMac.com](https://everymac.com/images/cpu_pictures/apple-imac-21-late-2015.jpg)
iMac "Core i5" 2.8 21.5" (Late 2015) Specs (Late 2015, MK442LL/A, iMac16,2, A1418, 2889): EveryMac.com
![Refurbished Apple iMac 16,2/i5-5675R/Quad Core/16GB RAM/1TB SSD/21.5-Inch 4K RD/Pro 6200/B (Late - 2015) | SafepcDirect Refurbished Apple iMac 16,2/i5-5675R/Quad Core/16GB RAM/1TB SSD/21.5-Inch 4K RD/Pro 6200/B (Late - 2015) | SafepcDirect](https://www.safepcdirect.co.uk/media/catalog/product/cache/1/image/900x900/9df78eab33525d08d6e5fb8d27136e95/2/1/21inch-sierra_1_6_2_2_4_3_2_1.jpg)