Y Avid Media Composer Keyboard Cover for MacBook Unibody (MC-M-CC-2) Compatible with:. 13-Inch MacBook (US / European ISO Keyboard). 13-Inch MacBook Air (US / European ISO Keyboard). 13-Inch aluminum unibody MacBook (US / European ISO Keyboard). 13-Inch aluminum unibody MacBook Pro (US / European ISO Keyboard). 13-Inch aluminum unibody MacBook Pro Retina (US / European ISO Keyboard). 15-Inch aluminum unibody MacBook Pro (US / European ISO Keyboard). 15-Inch aluminum unibody MacBook Pro Retina (US / European ISO Keyboard).