imac

iMac Intel, Alu 21.5″ Family

Models within this family Model No. Family ID Introduced
iMac Core 2 Duo 3.06 21.5-Inch (Late 2009) MB950LL A1311 2009-10-20
iMac Core 2 Duo 3.33 21.5-Inch (Late 2009) BTO/CTO A1311 2009-10-20
iMac 21.5-inch 3.06 i3 (Mid-2010) MC508LL A1311 2027-07-10
iMac 21.5-inch 3.2 i3 (Mid-2010) MC509LL A1311 2027-07-10
iMac 21.5-inch 3.6 i5 (Mid-2010) CTO BTO/CTO A1311 2027-07-10
iMac 21.5-inch 2.5 i5 (Mid-2011) MC309LL/A A1311 2011-05-03
iMac 21.5-inch 2.7 i5 (Mid-2011) MC812LL/A A1311 2011-05-03
iMac 21.5-inch 2.8 i7 (Mid-2011) CTO BTO/CTO A1311 2011-05-03
iMac 21.5-inch 3.1 i3 (Late-2011) MC978LL/A A1311 2011-08-08
iMac 21.5-inch 2.7 i5 (Late 2012) MD093LL/A A1418 2012-10-23
iMac 21.5-inch 2.9 i5 (Late 2012) MD094LL/A A1418 2012-10-23
iMac 21.5-inch 3.1 i7 (Late 2012) BTO/CTO A1418 2012-10-23
iMac 21.5-inch 3.3GHz i3 (Early 2013) ME699LL/A A1418 2013-03-05
iMac 21.5-inch 2.7 i5 (Late 2013) ME086LL/A A1418 2013-09-24
iMac 21.5-inch 2.9 i5 (Late 2013) ME087LL/A A1418 2013-09-24
iMac 21.5-inch 3.1 i7 (Late 2013) BTO/CTO A1418 2013-09-24
 

Here are listed all the ranges within the 21.5″ Aluminium Intel iMac family. There is little to differentiate these ranges other than the date they were manufactured.

If you are unsure which range you have, enter your serial number in the “Identify My Mac” box to the left. Click here to find your serial number.