OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
iMac (21.5-inch, Late 2012)のメモリ増設は、Apple StoreとApple正規サービスプロバイダに持ち込んで行う | サポート | Mac OTAKARA
Timetec Hynix Ic Apple 16Gb Kit (2X8Gb) Ddr3L 1600Mhz Pc3L-12800 Sodimm Memory Upgrade For Macbook Pro13-Inch/15-Inch Mid 2012, Imac 21.5-Inch : Amazon.in: Computers & Accessories
iMac Intel 21.5" EMC 2544 Repair - iFixit
2GB Memory (PC3-12800, DDR3 1600MHz) for Apple MacBook Pro 15 inch A1286 Mid 2012. iMac 21.5 inch A1418 Late 2012, A1418 MacMini A1347 - Late 2012
Install memory in an iMac - Apple Support
iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 4GBx2 | MacMemory.com
How to Upgrade iMac RAM: 2012-2022: EveryMac.com
Apple iMac (Late 2012) review (21.5- and 27-inch) | Macworld
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
32GB (2X16GB)Ram Upgrade for iMac Late 2012 21,5 inch? | MacRumors Forums