Mac RAM Upgrade, Best iMac Memory Upgrade – Best Reviews
Install memory in an iMac - Apple Support
OWC Performance Upgrades for iMac 2010
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iMac RAM Models 11.3 (i5 and i7 only) to 12.2 (8GBx4) | MacMemory.com
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
DDR3 1333MHZ PC3-10600 SODIMM for Apple iMac 2010 27" & 21.5" (11,3 11
Install memory in an iMac - Apple Support
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Apple iMac A1311 21.5 inch Desktop - MC508LL/A (July, 2010) for sale online | eBay
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
A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.... | eBay
Apple iMac 21.5" - Early 2010 Reviews, Pros and Cons | TechSpot