NEMIX RAM 32GB (4x8GB Upgrade) DDR3-1333 PC3-10600 204-Pin SODIMM Memory for Apple MacBook Pro Early/Late 2011, iMac Mid 2010 27 inch 4-Core, iMac Mid 2011 21.5/27” , Mac Mini Mid 2011 at Amazon.com
Apple A1312 iMac 12,2 mid 2011 27 inch i7 3.4GHz 32GB RAM AMD Radeon 2GB 2TB HDD | eBay
Apple A1312 iMac 12,2 mid 2011 27 inch i7 3.4GHz 32GB RAM AMD Radeon 2GB 2TB HDD | eBay
CMS 32GB (4X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I7 3.4 27-Inch (Mid-2011) - C12 at Amazon.com
Apple iMac 27" Mid 2011 - i5-2500S
HOW TO: Upgrade The RAM to 32GB on a Mid-2011 21.5inch iMac - YouTube
Maximum memory for 2011 iMac - Ask Different
Apple iMac 5K 27-inch (Mid 2019) 3.6GHz i9 32GB RAM 3TB Fusion - Buy Refurbished iMac 2019 at Techable
Memory Upgrades for Apple iMac 2011 Up to 32GB
Memory Upgrades for Apple iMac 2011 Up to 32GB
Amazon.com: Timetec 32GB KIT(4x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for iMac (Mid 2010 27 inch, Mid 2011 21.5/27 inch) SODIMM Memory Module MAC RAM Upgrade for iMac 11,3 / iMac 12,1 / iMac 12, 2 : Electronics
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com