Apple iMac 21.5in (Late 2009) Review: Apple beefs up its consumer desktop PC with a faster CPU and an energy-efficient display - Back to School - Desktop PCs - PC World Australia
PC Galore | iMac 21.5" i3 @ 3.06 GHz 16GB RAM 500 GB HDD 1920 x 1080 (Late 2009)
New 16GB 4x4GB Memory Apple iMac (21.5 and 27-inch, Mid 2011) PC3-10600 at Amazon.com
Review: 21.5-inch 2012 iMac takes two steps forward, one step back | Ars Technica
Memory Upgrades for Apple iMac 2011 Up to 32GB
Install memory in an iMac - Apple Support
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Install memory in an iMac - Apple Support
Memory Upgrades for Apple iMac 2009 - Up to 32GB
Apple iMac Core i7 8GB Computers | MD063LL/A | Discount-Computer.com
Used Apple iMac 21.5-inch 500GB Hard Drive 4GB RAM I3 Proessor (Mid 2010) - ZD Laptop Service Centre
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 3.06 21.5-Inch (Late 2009) - A35 at Amazon.com
How to Upgrade Memory in a Late 2009 21.5-inch or 27-inch iMac - YouTube
Install memory in an iMac - Apple Support
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
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Apple 21.5" iMac All in One Desktop Computer Core i5 8GB Ram 500GB HD OS High Sierra and WIFI Keyboard And Mouse - GRADE B
Memory Upgrades for Apple iMac 2009 - Up to 32GB
Apple iMac (21.5-inch, Late 2009) A1311 Late 2009, Core 2 Duo 3.06GHz 4GB Ram | eBay