The NANYA 4GB 2Rx8 PC3-10600S-9-10 F2 1333 NT4GC64B8HG0NS-CH Laptop Memory is a high-quality DDR3 SDRAM memory module designed for laptops. With a capacity of 4GB per module and a total capacity of 4GB, this memory module is perfect for upgrading or replacing existing memory modules in laptops. Made by Nanya, a reputable brand known for producing reliable memory modules, this product is a great choice for increasing the performance and capacity of your laptop. The compact SO-DIMM form factor and 204 pins make it compatible with a wide range of laptop models.