A-Tech 8GB Kit (2x4GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Just purchased this iMac. Is it worth upgrading ram and internally installing ssd? : r/mac
Memory upgrade: Apple iMac 2012/2013/2014 (Howto)
Apple iMac 21.5" Late 2013 Core i5 8GB RAM 250gb SSD - VESA Mount Only NO STAND | eBay
Apple iMac 21.5" Late 2013 A1418 Logic Board i5 2.9GHz 5200 1GB 1GB 66 | MacKing
Apple iMac 21.5-Inch Core i5 (Late 2013) All in One Desktop PC - Core i5 (I5-4570R) 2.7GHz - 8GB RAM - 1 TB HDD - Intel Iris Pro 5200 1536MB Graphics - Full HD Display - macOS High Sierra
Amazon.com: OWC 2TB Aura Pro X2 NVMe SSD Upgrade Kit Compatible with Select 27" and 21.5" iMac Models (Late 2013 - Current) : Electronics
iMac (Late 2012)」27インチモデルのメモリ(RAM)を交換する方法 | ゴリミー
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Apple iMac 21.5-inch and 27-inch (Late 2013) reviews | Macworld
16GB -2x8GB Memory Ram Upgrade 21.5" Apple iMac-14.1 Core i5 2.7GHz Late 2013 | eBay