Buy A-Tech 32GB Kit (4x8GB) DDR3 1333MHz RAM for Apple iMac (Mid 2010 27, Mid 2011 21.5/27) | PC3-10600 SODIMM 204-Pin Max Memory Upgrade Online in Indonesia. B07V9HYFX6
Self-upgraded the iMac (mid-2011) RAM to 16GB - shadowandy - my life stories
How (And Why) To Install More RAM In Your iMac
New 16GB 4x4GB Memory Apple iMac (21.5 and 27-inch, Mid 2011) PC3-10600 at Amazon.com
Upgrade Options for Apple iMac 27-Inch 2011
Install memory in an iMac - Apple Support
Amazon.com: Timetec Hynix IC 32GB KIT(4x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 for iMac (Mid 2010 27 inch, Mid 2011 21.5/27 inch) MAC SODIMM Upgrade | MAX RAM Upgrade for iMac 11,3