16GB Total memory consisting 2pcs of 8GB 204p PC3-10600 CL9 16c DDR3-1333 SODIMM Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS only Compatible with: Apple MacBook Pro "Core i7" 2.5 17" Late 2011 Standard Memory: 4GB Max Memory 16GB Max Memory por socket 8GB sockets 2