iMac 21.5 Inch 3.06GHz Intel Core i3 Mid-2010 MC508LL/A
Installing additional SSD in Mid-2010 27" iMac
Apple iMac 27" Mid 2010 AIO PC Intel Core i3 3.2GHz 4GB 250GB WiFi OS X 10.13 HS | eBay
Apple iMac 21.5" Mid 2010 Intel Core i3 8GB RAM 500GB HDD AMD Radeon High Sierra | eBay
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 :
iMac 21.5" LCD Panel (Mid 2010)
Apple iMac 27" - Mid 2010 Reviews, Pros and Cons | TechSpot
Apple iMac 27-inch (July 2010) review: Apple iMac 27-inch (July 2010) - CNET