The Crucial CT51264BC1339.M16FMR 4GB DDR3 PC3-10600 SODIMM Laptop Memory is a reliable and high-quality memory module designed for laptops. With a total capacity of 4GB spread across one module, this DDR3 SDRAM memory offers fast bus speed of PC3-10600 (DDR3-1333). Manufactured by Crucial, a trusted brand in the industry, this memory module is a great choice for boosting the performance of your laptop for various tasks such as gaming, multitasking, and running demanding applications smoothly.