8GB DDR3 PC3-12800 1600MHz 204Pin SO-DIMM 8 GB memory ram FOR Apple iMac Core i5 2.9 27-Inch Late 2012 13,2 MD095LL/A Lifetime warranty Built in and shipped from the USA Dataram, a trusted brand name since 1973 100% compatibility guarantee or full money back Compatible with most PC and Apple Laptops that use PC3-10600 SO DIMMS