Axiom 8GB DDR3-1066 SODIMM Kit (2 x 4GB) for Apple # MC016G/A - 8GB (2 x 4GB) - 1066MHz DDR3-1066/PC3-8500 - Non-ECC - DDR3 SDRAM - 204-pin SoDIMM

1066 MHz of memory speed makes your computer great at multitasking 8 GB of memory makes a perfect symmetry with your latest model processor and boosts up your computers performance DDR3-1066/PC3-8500 operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation