A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.... | eBay
Maximum memory for 2011 iMac - Ask Different
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
NEMIX RAM 32GB (4x8GB Upgrade) DDR3-1333 PC3-10600 204-Pin SODIMM Memory for Apple MacBook Pro Early/Late 2011, iMac Mid 2010 27 inch 4-Core, iMac Mid 2011 21.5/27” , Mac Mini Mid 2011 at Amazon.com
Just scored this 2010 iMac 21” i3 for $27!!! (I have a few upgrade question) : r/mac
iMacs for sale in Lombard, Illinois | Facebook Marketplace | Facebook
My free iMac 27" (2009) core i7 2.8, 32GB, 1TB SSD High Sierra. only cost me a SSD and about an hour of time. : r/mac