Apple Inc. keeps on changing configuration of devices, it is extremely important to recognize exactly which Apple device you got in order to avoid any non-compatibility issues. Verify various identification properties of your Apple device.

• MacBook Air (Mid 2009)
• [ Model Identifier: MacBookAir2,1 ] [ Part Numbers: MC505xx/A, MC233xx/A, MC234xx/A ] [ Newest compatible operating system: OS X El Capitan ]