iMac Intel 21.5" EMC 2308 Late 2009 iMac Intel 21.5" EMC 2389 Mid 2010 iMac Intel 21.5" EMC 2428 Mid 2011 iMac Intel 21.5" EMC 2544 Late 2012 iMac Intel 21.5" EMC 2496 Late 2011 (Edu) iMac Intel 21.5" EMC 2545 Early 2013 (Edu) iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 iMac Intel 21.5" EMC 2805 Mid 2014 iMac Intel 21.5" EMC 2889 Late 2015 iMac Intel 21.5" EMC 3068 iMac Intel 21.5" Retina 4K Display 2015 iMac Intel 21.5" Retina 4K Display 2017 iMac Intel 21.5" Retina 4K Display 2019
