A-Tech 8GB (2 x 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 Kit at Amazon.com
Amazon.com: OWC Data Doubler Optical Bay Hard Drive/SSD Mounting Solution for iMac 2009-2011. : Electronics
Amazon.com: Apple iMac 21.5in 2.7GHz Core i5 (ME086LL/A) All In One Desktop, 8GB Memory, 256GB Solid State Drive, MacOS 10.12 Sierra (Renewed) : Electronics
OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com
Amazon.com: BESTeck New LCD Front Glass Replacement for iMac 21.5 Inch A1311 Year 2009 2010 2011 922-9117 922-9343 (iMac 21.5'') : Electronics
Apple iMac 27" 3.06GHZ (2009) review | TechRadar
A-Tech 16GB Kit (2x8GB) DDR3 1066MHz / 1067MHz PC3-8500 SODIMM RAM for Apple MacBook (13 inch, Mid 2010), MacBook Pro (13 inch, Mid 2010), iMac (27 inch, Late 2009), Mac Mini (Mid 2010) at Amazon.com
Amazon.com : Apple iMac MK482LL/A 27-Inch Retina 5K Display Desktop (Intel Quad-Core i5 3.3GHz, 8GB RAM),(Discontinued by Manufacturer) : Electronics
Amazon.com: VIVO Adapter VESA Mount Kit, Bracket Set for Apple 21.5 inch and 27 inch iMac, Late 2009 to 2020 Models, LED Display Computer, Stand-MACB : Electronics