By marketing number on the box

You’ll find a sticker on the outside of the original iMac packaging that lists the part number. Just match your number with one in the table below to find your iMac model. The two characters before the slash (/) vary by country, but the rest of the part number will be the same worldwide (“XX” represents the two variable characters below).

 

Year Model Model Identifier Number
2014
 iMac (Retina 5K, 27-inch, Late 2014)  iMac15,1 MF886XX/A
2014
iMac (21.5-inch, Mid 2014)  iMac14,4 MF883XX/A
iMac (21.5-inch, Mid 2014)  iMac14,4 MG022XX/A
2013
iMac (21.5-inch, Late 2013)  iMac14,1 ME086XX/A
iMac (21.5-inch, Late 2013)  iMac14,1 ME087XX/A
iMac (27-inch, Late 2013)  iMac14,2 ME088XX/A
iMac (27-inch, Late 2013)  iMac14,2 ME089XX/A
2012
iMac (21.5-inch, Late 2012)  iMac13,1 MD093XX/A
iMac (21.5-inch, Late 2012)  iMac13,1 MD094XX/A
iMac (27-inch, Late 2012)  iMac13,2 MD095XX/A
iMac (27-inch, Late 2012)  iMac13,2 MD096XX/A
2011
iMac (21.5-inch, Mid 2011)  iMac12,1 MC309XX/A
iMac (21.5-inch, Mid 2011)  iMac12,1 MC812XX/A
iMac (27-inch, Mid 2011)  iMac12,2 MC813XX/A
iMac (27-inch, Mid 2011)  iMac12,2 MC814XX/A
2010
iMac (21.5-inch, Mid 2010)  iMac11,2 MC508XX/A
iMac (21.5-inch, Mid 2010)  iMac11,2 MC509XX/A
iMac (27-inch, Mid 2010)  iMac11,3 MC510XX/A
iMac (27-inch, Mid 2010)  iMac11,3 MC511XX/A
2009
iMac (21.5-inch, Late 2009) iMac10,1 MB950XX/A
iMac (21.5-inch, Late 2009) iMac10,1 MC413XX/A
iMac (27-inch, Late 2009) iMac10,1 MB952XX/A
iMac (27-inch, Late 2009) iMac11,1 MB953XX/A
iMac (20-inch, Early 2009) iMac9,1 MB417XX/A
iMac (20-inch, Early 2009) iMac9,1 MC019XX/A
iMac (24-inch, Early 2009) iMac9,1 MB418XX/A
iMac (24-inch, Early 2009) iMac9,1 MB419XX/A
iMac (24-inch, Early 2009) iMac9,1 MB420XX/A
iMac (24-inch, Early 2009) iMac9,1 MC020XX/A
iMac (24-inch, Early 2009) iMac9,1 MC021XX/A
iMac (24-inch, Early 2009) iMac9,1 MC022XX/A
2008
iMac (20-inch, Early 2008)  iMac8,1 MB323XX/A
iMac (20-inch, Early 2008)  iMac8,1 MB324XX/A
iMac (24-inch, Early 2008)  iMac8,1 MB325XX/A
iMac (20-inch, Early 2008)  iMac8,1 MB388XX/A
iMac (20-inch, Early 2008)  iMac8,1 MB391XX/A
iMac (24-inch, Early 2008)  iMac8,1 MB393XX/A
iMac (24-inch, Early 2008)  iMac8,1 MB398XX/A
2007
iMac (20-inch, Mid 2007) iMac7,1 MA876XX/A
iMac (20-inch, Mid 2007) iMac7,1 MA877XX/A
iMac (24-inch, Mid 2007) iMac7,1 MA878XX/A
iMac (20-inch, Mid 2007) iMac7,1 MB199XX/A
iMac (20-inch, Mid 2007) iMac7,1 MB200XX/A
iMac (24-inch, Mid 2007) iMac7,1 MB201XX/A
iMac (24-inch, Mid 2007) iMac7,1 MB322XX/A
iMac (24-inch Mid 2007) iMac7,1 MA878XX/A
iMac (20-inch Mid 2007) iMac7,1 MA877XX/A
iMac (20-inch Mid 2007) iMac7,1 MA876XX/A
iMac (24-inch) MA456xx/A
2006
iMac (20-inch Late 2006) iMac5,1 MA589xx/A
iMac (17-inch Late 2006) iMac5,1 MA590xx/A
iMac (17-inch Late 2006 CD) iMac5,2 MA710xx/A
17-inch iMac (Mid 2006), 1.83 GHz Intel Core Duo iMac4,2 MA406xx/A
20-inch iMac (Early 2006), 2.0 GHz Intel Core Duo iMac4,1 MA200xx/A
17-inch iMac (Early 2006), 1.83 GHz Intel Core Duo iMac4,1 MA199xx/A
20-inch iMac G5 (iSight), 2.1 GHz MA064xx/A
17-inch iMac G5 (iSight), 1.9 GHz MA063xx/A
2005
17-inch iMac G5 (Ambient Light Sensor), 1.8 GHz M9843xx/A
17-inch iMac G5 (Ambient Light Sensor), 2.0 GHz M9844xx/A
20-inch iMac G5 (Ambient Light Sensor), 2.0 GHz M9845xx/A
2004
17-inch iMac G5, 1.6 GHz M9248xx/A
M9363xx/A
17-inch iMac G5, 1.8 GHz M9249xx/A
M9823xx/A
20-inch iMac G5, 1.8 GHz M9250xx/A
M9824xx/A