iMac Intel 21.5" EMC 2389 RAM Replacement - iFixit Repair Guide
apple-history.com / iMac (Mid 2010)
Amazon.com: Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac(Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) MAC RAM Upgrade :
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
How to upgrade RAM / Memory on a 2010 iMac Core i3 i5 i7 (21.5in & 27in) - YouTube
RAM upgrade considerations for iMac systems - CNET
iMac "Core i7" 2.93 27" (Mid-2010) Specs (Mid-2010, MC784LL/A, iMac11,3, A1312, 2390): EveryMac.com
A-Tech 4GB PC3-8500 DDR3 1066/1067 MHz RAM for MacBook, MacBook Pro, iMac, Mac Mini (Late 2008, Early/Mid/Late 2009, Mid 2010) | 204-Pin SODIMM Memory Upgrade Module at Amazon.com
32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
Installing additional SSD in Mid-2010 27" iMac
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
iMac (27-inch, 2.93GHz Intel Core i7, Mid 2010) | iGotOffer
Apple iMac A1311 Desktop iMac (21.5-inch, Mid 2010) | eBay
iMac | 2.93 GHz Intel i7 | 27 Inch | Mid 2010 - Techable.com
iMac Intel 21.5" EMC 2389 (Mid 2010) Memory Maxxer RAM Upgrade Kit
CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I3 3.06 21.5-Inch (Mid-2010) - A28 at Amazon.com
Install memory in an iMac - Apple Support (PH)
iMac | 2.93 GHz Intel i7 | 27 Inch | Mid 2010 - Techable.com
Apple iMac (27-Inch Mid 2011) 2.7GHz Intel Core i5 1TB HDD 4GB Memory for sale online | eBay
iMac Intel 27" EMC 2390 RAM Replacement - iFixit Repair Guide
iMac 2009 to 2011 (A1311/A1312) Upgrade Guide – MacintoshMen
Amazon.com: A-Tech Components: Mid 2010 iMac
iMac "Core i3" 3.2 21.5" (Mid-2010) Specs (Mid-2010, MC509LL/A, iMac11,2, A1311, 2389): EveryMac.com
apple-history.com / iMac (Mid 2010)
Install memory in an iMac - Apple Support
