This product is a 4GB DDR3L 1600MHz laptop RAM SO-DIMM PC3L-12800 memory module, designed for use in various brands of laptops. The RAM is manufactured by SK hynix, a reputable brand known for producing high-quality memory components. This DDR3L RAM is ideal for upgrading or replacing existing memory modules in laptops to improve performance and speed. The low power consumption of 1.35V makes it an energy-efficient choice for laptop users looking to boost their system's memory capacity.