This listing is for a 2.5" Hard Disc Drive (various brands) that are used in Apple Macbooks and Mac Minis. This comes with OS X El Capitan  and Office installed. All you need to do is plug it in. 

This OSX and 2.5in hard drive will work with the following models:

MacOS El Capitan requires at least 2 GB of RAM will run on:

  • Macbook Unibody and regular Macbook: Late 2008 - 2010 (no models after 2010)
  • MacBook Pro: Early 2008 - 2013 (after 2014 you'll need a SSD)
  • Mac Mini: Early 2009 - Late 2014 (after 2014 they're soldered in)