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
iMac Intel 21.5" EMC 2428 (Mid 2011) Memory Maxxer RAM Upgrade Kit - iFixit Store
iMac Intel 21.5" EMC 2428 RAM Replacement - iFixit Repair Guide
Mid 2011 Apple iMac 21.5" i5 2.5 GHz 4GB RAM 500 GB HDD High Sierra | eBay
iMac RAM Memory Upgrade tutorial EASY (Mid 2011) - YouTube
Install memory in an iMac - Apple Support
8GB 2x4GB Memory Apple iMac 21.5" , 27" Mid 2011 PC3-10600 MC813LL/A, MC309LL/A | eBay
Memory Upgrades for Apple iMac 2011 Up to 32GB
New 16GB 4x4GB Memory Apple iMac (21.5 and 27-inch, Mid 2011) PC3-10600 at Amazon.com
Install memory in an iMac - Apple Support
21.5" mid 2011 iMac performance on DOTA 2 | MacRumors Forums
32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
Sold - 21.5" iMac Mid 2011 // $495 - Boulder Mac Repair
Install memory in an iMac - Apple Support
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
Apple iMac 21.5-inch (mid 2011) Reviews, Pricing, Specs
Memory Upgrades for Apple iMac 2011 Up to 32GB
iMac Intel 21.5" EMC 2428 RAM Replacement - iFixit Repair Guide
Apple - iMac (21.5-inch, Mid 2011) i5, 8GB, 256GBSSD, High Sierra- Ref – Ordinateur St Joseph
iMac 21.5-Inch "Core i5" 2.5 (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com
Apple iMac 21.5" All-in-One Desktop Computer i3 3.07GHz 4GB Ram 500GB HDD Mac OS High Sierra MC508LL/A w/ Keyboard & Mouse - GRADE B
New 16GB 4x4GB Memory Apple iMac (21.5 and 27-inch, Mid 2011) PC3-10600 at Amazon.com
Apple iMac A1311 21.5" Desktop - MC812LL/A (May, 2011) for sale online | eBay
Apple MC309LL/A 21.5 inch iMac Core i5 2.5 GHz 4GB RAM 500GB HDD Mid-2011 | Recycledgoods.com
