I recently purchased 2011 21.5 iMac (Mid-2011) and I'm obsessed. : r/mac
Maximum memory for 2011 iMac - Ask Different
iMac Intel 21,5" Mid 2011 EMC 2428 - used original spareparts for Macs
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
iMac 27 RAM memory upgrade Easy How To Tutorial Mid 2011 - YouTube
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Apple iMac (A1312) 27 Inch High Sierra Intel 2.7Ghz i5 1TB HDD 16GB RAM Mid 2011 | eBay
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