Memory 4GB DDR3 1333MHz 204-Pin PC3-10600 for Apple Mac M471B5273CH0-CH9
Compatible with Mac mini (DDR3) Core i5 2.3/2.5 (Mid 2011) Mac mini (DDR3) Core i7 2.0/2.7 (Mid 2011) MacBook Pro (DDR3) 13-inch (Early 2011) MacBook Pro (DDR3) 15-inch (Early 2011) MacBook Pro (DDR3) 17-inch (Early 2011) iMac Intel Core i3/i5 21.5-inch (Mid 2010) iMac Intel Core i5/i7 21.5-inch (Mid 2011) iMac Intel Core i5/i7 27- inch (Mid 2010) iMac Intel Core i5/i7 27-inch (Mid 2011)