iMac 21.5" Late 2013 Catalina Intel i5 ME086LL/A|$ 175.00
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How to Upgrade Memory in a 27-inch iMac (Late 2012-2013) iMac13,2 and iMac14,2 - YouTube
NEMIX RAM 16GB Kit (2x8GB Upgrade) DDR3-1600 SODIMM PC3-12800 for Apple MacBook Pro Mid 2012 / iMac Late 2012 / iMac 2013, Late 2014, Mid 2015, Mac Mini Late 2012 at Amazon.com
Restored Apple 21.5" Full HD Display iMac 2.7 GHz i5 Quad-Core 8GB Ram 1T HD - ME086LL/A (Refurbished) - Walmart.com
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Restored Apple 21.5" Full HD Display iMac 2.7 GHz i5 Quad-Core 8GB Ram 1T HD - ME086LL/A (Refurbished) - Walmart.com
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
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A-Tech for Apple 8GB Module PC3-12800 Mac Mini iMac Late 2013 Late 2012 ME086LL/A A1418 ME087LL/A ME088LL/A A1419 ME089LL/A MF886LL/A MF885LL/A MD387LL/A A1347 MD388LL/A MD389LL/A Memory RAM at Amazon.com
Install memory in an iMac - Apple Support
Apple A1418 iMac ME086LL/A - i5-4570S @ 2.7GHz 8GB Ram 1TB HDD - Local Pick Up Only · Repowered
Restored Apple 21.5" Full HD Display iMac 2.7 GHz i5 Quad-Core 8GB Ram 1T HD - ME086LL/A (Refurbished) - Walmart.com
Best Buy: Apple 21.5" iMac® Intel Core i5 (2.7GHz) 8GB Memory 1TB Hard Drive Silver ME086LL/A
A-Tech 8GB 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