Samsung original 8GB (1 x 8GB) 204-pin SODIMM, DDR3 PC3L-12800, 1600MHz ram memory module for laptops Module Size: 8GB (8GBx1) Lifetime warranty. For Windows laptops and PCs, please make sure, your machine can support 8GB ram into one memory slot.Also make sure, your windows is 64bit, as 32bit Windows OS has limitations and can support 4GB ram ONLY. Specs: DDR3 PC3L-12800 , CL=11 , Unbuffered , NON-ECC , DDR3-1600 , 1.35V Package: 204-pin SODIMM Feature: DDR3 PC3L-12800