Mac OS Monterey is already Pre-installed. Just plug and play
It can be reformatted for other operating systems.
Compatible Models:
MacBook Air 11" A1465 2013 2014 2015
MacBook Air 13" A1466 2013 2014 2015 2017
MacBook Pro 13" A1502 2013 2014 2015
MacBook Pro 15" A1398 late 2013 2014
Mac Pro A1481 2013