Restored 2011 Apple iMac 27" Core i5 3.1GHz 4GB RAM 1TB HDD MC814LL/A (Refurbished) - Walmart.com
Best Buy: Apple® 21.5" iMac® 4GB Memory 500GB Hard Drive MC309LL/A
A-Tech 4GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com
iMac 21.5-inch (Mid-2011) Core I5-2400S 2.5GHz 500 GB HDD 4GB RAM | eBay
Install memory in an iMac - Apple Support
Restored 2011 Apple iMac 27" Core i5 3.1GHz 4GB RAM 1TB HDD MC814LL/A (Refurbished) - Walmart.com
A-Tech 16GB (4x4GB) RAM for Apple iMac (Mid 2010, Mid 2011, Late 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Apple iMac 27'' 2011 i5 3.1 GHz 4GB RAM 1TB SATA Storage Ref F36 | eBay
Crucial 4GB DDR3L-1333 SODIMM Memory for Mac | CT4G3S1339M | Crucial.com
A-Tech 4GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com
Mac mini Mid 2011 Memory Maxxer RAM Upgrade Kit
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Apple iMac 21.5" Mid 2011 Intel Core i5 2.7 GHz 1TB SATA Disk 4GB RAM HighSierra | eBay
Apple iMac Mid 2011 A1311 21.5" Intel Core I7 2.8ghz 4gb RAM 1tb HDD OS X Sierra for sale online | eBay
4GB PC10600 DDR3 1333MHz SO-DIMM Memory Compatible with 2011 MacBook Pro, Mid 2010/2011 21.5" & 27" iMac Models, 2011 Mac Mini (OWC1333DDR3S4GB) at Amazon.com
OWC 16.0GB (4 x 4GB) 1333MHz 204-Pin DDR3 SO-DIMM PC3-10600 CL9 Memory Compatible with iMac (OWC1333DDR3S16S) at Amazon.com
CMS 4GB (2X2GB) RAM Memory 4 Apple iMac "Core i5" 2.5 21.5-Inch (Mid-2011) - Walmart.com
A-Tech for Apple 8GB Kit 2X 4GB PC3-10600 1333Mhz Mac Mini iMac Mid 2011 Mid 2010 Late 2011 MC508LL/A A1311 MC509LL/A MC510LL/A A1312 MC978LL/A MC816LL/A A1347 MC936LL/A Memory RAM at Amazon.com
Apple iMac Mid 2011 A1312 Logic Board 820-2494-A - 4GB RAM
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Apple iMac 2011 A1311 intel Core i3 3.1GHz 4GBRAM 250GB HDD 21.5" Desktop | eBay
iMac | 2.7 GHz Intel i5 | 27 Inch | Mid 2011 - Techable.com
A-Tech 4GB KIT 2X 2GB Apple iMac 2.5GHz Intel Quad-Core i5 21.5'' Mid 2011 2.7GHz Intel Quad-Core i5 21.5'' Mid 2011 SO-DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory at Amazon.com
Memory Upgrades for Apple iMac 2011 Up to 32GB
Apple MC309LL/A 21.5 inch iMac Core i5 2.5 GHz 4GB RAM 500GB HDD Mid-2011 | Recycledgoods.com
