16GB 2X 8GB Memory Sodimm DDR3 PC3-8500 1066 MHz for Apple Mac Book MACBOOK PRO Could be Samsung, Kingston, Hynix, Smart, Corsair, Elpida, Micron, or Nanya Warranty: LIFETIME WARRANTY WorldWide Shipping to most countries & USA Capacity: 16gb (2x8gb) - You receive 2 Stick of the 8gb SODIMMS for a total of 16gb