The SK hynix 4GB Kit (2x2GB) DDR3L-1600 PC3L-12800S Laptop RAM is a high-quality memory module designed for laptops. With a total capacity of 4GB spread across two modules, each with a capacity of 2GB, this RAM is ideal for improving the performance of your computer. The DDR3 SDRAM technology ensures fast data transfer speeds, while the PC-1600 bus speed provides reliable performance for a range of computing tasks. The SO-DIMM form factor makes it easy to install in a variety of laptop models, making it a versatile choice for upgrading your system's memory capacity.