The G.Skill Laptop Memory 4GB (2GB x2) DDR2-800mhz PC2-6400 F2-6400CL5D-4GBSQ SODIMM is a high-quality memory module designed for laptops. With a total capacity of 4GB split into two 2GB modules, this DDR2 SODIMM offers fast performance at a bus speed of PC2-6400 (DDR2-800). The G. SKILL brand is known for producing reliable and efficient memory modules, making this product a great choice for upgrading your laptop's memory capacity.