Quickly Find a Mac Model Identifier Number
Most Mac users know what type of Mac they have, whether it’s a MacBook Air, MacBook Pro, iMac, or whatever, and many know the model year of their computer too, but typically much less known is the model identifier number for a given Mac. Model identifiers are generally in the format of ModelNameModelNumber,Revision, for example, “MacBookAir6,2”. While knowing a model identifier is rarely necessary for general knowledge of your computer, it can be needed sometimes when troubleshooting specific problems, purchasing specific hardware upgrades, or just for properly referencing a specified model of a given Mac.
Though the model identifier is somewhat technical (very few people will actually refer to their Mac by the model identifier number), OS X makes it very easy to retrieve on virtually very modern version of the Mac operating system. Thus, if you ever need to know your Mac model identifier number, just do the following steps to find those details for any given machine:
- Hold down the OPTION key and click on the Apple menu
- Choose “System Information…” from the top of the list (this is “About This Mac’ if the Option key is not held down
- In the System Information detailed screen, choose Hardware (this is usually selected by default) and locate the “Model Identifier” within Hardware Overview
The Model Identifier will always be a name and a numerical sequence following the “Model Name and Model Number, Model Revision” syntax as already mentioned, this can look something like “iMac9,3” or “MacBookAir3,1” amongst many others.
This is the same in all modern versions of OS X, as is the System Information app.
You’ll often find that simply knowing and finding the model year of when a Mac was built is sufficient, but sometimes services and sites will reference a model identifier number instead. Either way, this type of information can be useful for hardware upgrades, though it should be noted that Mac OS X makes memory upgrades easy by showing you what type of RAM and the capacity as well for any specific machine, assuming the Mac can be upgraded anyway.