The Corsair Laptop Memory 4GB (2x2GB) DDR3 1333MHz CMSO4GX3M2A1333C9 is a new memory module specifically designed for laptops. With a total capacity of 4GB spread across 2 modules, each with a capacity of 2GB, this DDR3 RAM is ideal for improving the performance and speed of your laptop. The Corsair brand is known for its reliability and quality, making this memory module a dependable choice for enhancing your computing experience.