Locating Your Product Serial Number
Use one of these methods to find your MacBook serial number:
Â Turn over your MacBook. The serial number is etched into the bottom case.
Â Choose Apple () > About This Mac, and then click the version number beneath the
words “Mac OS X” to cycle through the Mac OS X version number, the build version,
and the serial number.
Â Click the Finder icon and open /Applications/Utilities/System Profiler. Click Hardware
in the Contents pane.