Ram memory upgrades 16GB kit (8GBx2) DDR3 PC3 10600 1333Mhz for latest 2011 Apple MacbookPro's laptops, iMac's and Mac Mini's Total Capacity: 16GB kit (8GBx2) Specs: DDR3 PC3-10600 ,CL=9 ,Unbuffered ,NON-ECC ,DDR3-1333 ,1.35V Form Factor SODIMM Brand Crucial Warranty: Limited Lifetime