If you would like to see a visual representation – visit Apple’s website. Be sure to switch off the Mac Pro before turning it over. Mac Pro 2013 (Cylinder computer): Found on the bottom surface of the computer.Mac Pro pre-2013 (Tower computer): Found on the computer’s back panel, near the video card’s output.

For really old MacBook Pros that are dated pre-2008 the location of the numbers will be found within the laptop.

MacBook Pro: Found on the back surface of the laptop.

The location of the numbers will differ between models post-2012, 2010-2011 and Original-2009 however on all MacBook Airs, the numbers will be at the back surface of the laptop.

MacBook Air: Found on the back surface of the laptop.

Be sure to switch off your iMac, disconnect the wires and then flip it over, preferably on a soft surface, to reveal the numbers.

iMac: Found on the base of the computer.Here’s a list of Macs with the locations where you will probably find the serial number and other information: It is usually located on the underside, but the location of your serial number depends on the Mac model. You will also find the serial number on the Mac itself. Just click on the product to see information including the serial number.

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