A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Install memory in an iMac - Apple Support
Restored Apple iMac 21.5-inch All-In-One PC, 2.7 GHz Intel Core i5 Quad Core, Silver (Refurbished) - Walmart.com
HOW TO: Upgrade The RAM to 32GB on a Mid-2011 21.5inch iMac - YouTube
Maximum memory for 2011 iMac - Ask Different
Apple iMac 21.5-inch Mid 2011 2.5GHz Intel Core i5 (MC309LL/A) – UNICOM, Inc.
iMac 21.5-inch (Mid-2011) Core i5 2.5GHz - HDD 500 GB - 8GB | Back Market
iMac | 2.8 GHz Intel i7 | 21.5 Inch | Mid 2011 - Techable.com
Apple iMac 21.5", Mid 2011, 2.7GHz Intel Core i5, 4GB, High Sierra 1TB SATA HD | eBay
RAM Upgrade for iMac Mid 2011 21.5-inch | MacRumors Forums
Apple iMac 21.5-inch 2.8GHz Quad-core i7 (Mid 2011) MC812LL/A-BTO | mac of all trades
Install memory in an iMac - Apple Support
Apple MC309LL/A 21.5 inch iMac Core i5 2.5 GHz 4GB RAM 500GB HDD Mid-2011 | Recycledgoods.com
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
HOW TO: Upgrade The RAM to 32GB on a Mid-2011 21.5inch iMac - YouTube
iMac Intel 21.5" EMC 2428 (Mid 2011) Memory Maxxer RAM Upgrade Kit
21.5-inch or 27-inch iMac (Mid 2011) Memory Installation iMac12,1 iMac12,2 - YouTube
Install memory in an iMac - Apple Support
iMac 21.5-inch (Mid-2011) Core I5-2400S 2.5GHz 500 GB HDD 4GB RAM | eBay
iMac | 2.7 GHz Intel i5 | 21.5 Inch | Mid 2011 - Techable.com
Apple iMac 21.5-inch 2.8GHz Quad-core i7 (Mid 2011) MC812LL/A Best Buy! | MacBlowouts
iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com
