Apple Certified 4GB (1 x 4GB) DDR3 1066MHz 204-pin SODIMM RAM Memory Upgrade for the MacBook

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Apple Certified 4GB (1 x 4GB) DDR3 1066MHz 204-pin SODIMM RAM Memory Upgrade for the MacBook

DDR3 1066MHz 204-pin SODIMM
Apple Certified Memory
Lifetime Replacement Warranty