8GB Kit (2x4GB) DDR3-1067 SODIMM RAM Memory Upgrade for Apple MacBook Pro, Macbook and Imac by Gigaram Increases system performance This module may be manufactured by Micron, Samsung, Infineon, Hynix or Gigaram. This module is in stock and can ship today. Compatible with select Mac systems Compatible with Apple iMac 20-inch 2.66GHz Intel Core 2 Duo (MB417LL/A), iMac 20-inch 2.0GHz Intel Core 2 Duo (MC015LL/A), iMac 20-inch 2.26GHz Intel Core 2 Duo (MC015LL/B), iMac 20-inch 2.26GHz Intel Core 2 Duo (MC015LL/C), iMac 21.5-inch 3.06GHz Intel Core 2 Duo (MB950LL/A), iMac 21.5-inch 3.06GHz Intel Core 2 Duo (MC413LL/A), iMac 21.5-inch 3.33GHz Intel Core 2 Duo, iMac 24-inch 2.66GHz Intel Core 2 Duo (MB418LL/A), iMac 24-inch 2.93GHz Intel Core 2 Duo (MB419LL/A), iMac 24-inch 3.06GHz Intel Core 2 Duo (MB420LL/A), iMac 27-inch 2.8GHz Intel Core i7 (Quad core), iMac 27-inch 2.66GHz Intel Core i5 (Quad core) (MB953LL/A), iMac 27-inch 3.06GHz Intel Core 2 Duo (MB952LL/A), iMac 27-inch 3.33GHz Intel Core 2 Duo, MacBook Air 11.6-inch Intel Core 2 Duo 1.4GHz (MC505LL/A), MacBook Air 11.6-inch Intel Core 2 Duo 1.4GHz (MC506LL/A), MacBook 13.3-inch Intel Core 2 Duo 2.4GHz (MC516LL/A), MacBook Pro 13-inch Intel Core 2 Duo 2.26GHz (MB990LL/A), MacBook Pro 13-inch Intel Core 2 Duo 2.53GHz (MB991LL/A), MacBook Pro 13.3-inch Intel Core 2 Duo 2.4GHz (MC374LL/A), MacBook Pro 13.3-inch Intel Core 2 Duo 2.66GHz (MC375LL/A), MacBook Pro 15.4-inch Intel Core 2 Duo 2.53GHz (MC118LL/A), MacBook Pro 15.4-inch Intel Core 2 Duo 2.66GHz (MB985LL/A), MacBook Pro 15.4-inch Intel Core 2 Duo 2.8GHz (MB986LL/A), MacBook Pro 15.4-inch Intel Core i5 2.4GHz (MC371LL/A), MacBook Pro 15.4-inch Intel Core i5 2.53GHz (MC372LL/A), MacBook Pro 15.4-inch Intel Core i7 2.66GHz (MC373LL/A), MacBook Pro 17-inch Intel Core 2 Duo 2.66GHz (MB604LL/A), MacBook Pro 17-inch Intel Core 2 Duo 2.93GHz (CTO), MacBook Pro 17-inch Intel Core 2 Duo 2.8GHz (MC226LL/A), MacBook Pro 17-inch Intel Core 2 Duo 3.06GHz (CTO), MacBook Pro 17-inch Intel Core i5 2.53GHz (MC024LL/A), MacBook Pro 17-inch Intel Core i7 2.66GHz (CTO). 100% Compatible Lifetime Warranty.