Which iMac Do I Have? Identifying Apple Products

Don’t worry if you can’t work out which iMac you have. It’s a pretty common issue because they all look similar and the exact details of the model aren’t printed on the product itself. If you’ve gotten ride of your original packaging or are looking to sell your iMac or buy accessories that are compatible with your specific model, this guide will help you identify the model and generation of all of the different versions of iMac.

How to Check Which iMac You Have


Check "About This Mac"

As with all Macs, you can easily identify which model an iMac is by checking “About This Mac” – click on the apple logo menu, select “About This Mac”, then check the "Overview" to find out which version you own.


Screenshot of about this mac

About This Mac

Finding the Serial Number

If you can’t turn your iMac on, you can still find out which model you’ve got by finding the serial number printed on the underside of the computer on the bottom of the stand. As with all Macs, the serial number should be printed near the other regulatory markings.

Your serial number will be an 11-digit number. Simply search for it online to find out which model of iMac you’ve got.


Finding the Apple Part Number

Kept the original packaging for your iMac? If you’ve got this, then you should be able to find the Apple part number printed on the box. The format of this number should be similar to MRT4xx/A – just make sure it has a forward slash and an ‘A’ at the end.

Having found your Apple part number, check through the table below to match it up with your model and generation of iMac. Whichever year your iMac is from, you’ll find it listed here along with its date of introduction: 


iMac Model/Generation

Part Number(s)


iMac (21.5-inch, Late 2009)

MB950xx/A, MC413xx/A

Late 2009

iMac (27-inch, Late 2009)

MB952xx/A, MB953xx/A

Late 2009

iMac (21.5-inch, Mid 2010)

MC508xx/A, MC509xx/A

Mid 2010

iMac (27-inch, Mid 2010)

MC510xx/A, MC511xx/A, MC784xx/A

Mid 2010

iMac (21.5-inch, Mid 2011)

MC309xx/A, MC812xx/A

Mid 2011

iMac (27-inch, Mid 2011)

MC813xx/A, MC814xx/A

Mid 2011

iMac (21.5-inch, Late 2012)

MD093xx/A, MD094xx/A

Late 2012

iMac (27-inch, Late 2012)

MD095xx/A, MD096xx/A

Late 2012

iMac (21.5-inch, Late 2013)

ME086xx/A, ME087xx/A

Late 2013

iMac (27-inch, Late 2013)

ME088xx/A, ME089xx/A

Late 2013

iMac (21.5-inch, Mid 2014)


Mid 2014

iMac (Retina 5K, 27-inch, Late 2014)


Late 2014

iMac (Retina 5K, 27-inch, Mid 2015)


Mid 2015

iMac (21.5-inch, Late 2015)

MK142xx/A, MK442xx/A

Late 2015

iMac (Retina 4K, 21.5-inch, Late 2015)


Late 2015

iMac (Retina 5K, 27-inch, Late 2015)

MK462xx/A, MK472xx/A, MK482xx/A

Late 2015

iMac (21.5-inch, 2017)


Mid 2017

iMac (Retina 4K, 21.5-inch, 2017)

MNDY2xx/A, MNE02xx/A

Mid 2017

iMac (Retina 5K, 27-inch, 2017)

MNE92xx/A, MNEA2xx/A, MNED2xx/A

Mid 2017

iMac (Retina 4K, 21.5-inch, 2019)

MRT3xx/A, MRT4xx/A

Mid 2019

iMac (Retina 5K, 27-inch, 2019)

MRQYxx/A, MRR0xx/A, MRR1xx/A

Mid 2019


We hope this guide has helped you to identify which iMac you’ve got. If you’re looking to sell your Mac and upgrade to a newer model, then check out our great deals on refurbished iMacs.

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