NEMIX RAM 16GB Kit (2X8GB) DDR3 1067MHz/1066MHz PC3-8500 CL7 SODIMM Memory Upgrade Compatible for Apple Mac Book (Mid 2010 13-inch), Mac Book Pro (Mid 2010 13-inch), iMac (Late 2009 27-inch) at Amazon.com
32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
iMac Mid-2010 27 inch (A1312) SSD and RAM disassembly and upgrade - Much FASTER! - YouTube
Install memory in an iMac - Apple Support
Install memory in an iMac - Apple Support
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 :