DDR3 1066MHz PC3-8500 204-Pin Unbuffered Non-ECC 1.5V CL7 Dual Rank 2Rx8 Based 256x8 Module Size: 4GB Packaging: 2x4GB Guaranteed - Lifetime Warranty from Date of Purchase Free Technical Support
Compatible with Apple Mac Book - 13-inch Late 2008, 13-inch Late 2009, 13-inch Mid 2010 - Mac Book5,1 MacBook6,1 Mac Book7,1
Compatible with Apple Mac Book Pro - 15 inch Late 2008, 17 inch Early 2009, 13 inch/15 inch/17 inch Mid 2009, 13 inch/15 inch/17 inch Mid 2010 - Mac Book Pro5,1 Mac Book Pro5,2 Mac Book Pro5,3 Mac Book Pro5,4 Mac Book Pro5,5 Mac Book Pro6,1 Mac Book Pro6,2 Mac Book Pro7,1
Compatible with Apple iMac - 20-inch/24-inch Early 2009, 20-inch Mid 2009, 21.5-inch/27-inch Late 2009 - iMac9.1 iMac10.1 iMac11.1
Compatible with Apple Mac Mini - Early 2009, Late 2009, Mid 2010 - MacMini3,1 MacMini4,1