The SK Hynix 4GB 2Rx8 DDR3 PC3-12800S-11-11-F3 Laptop Memory is a high-quality memory module designed for laptops. With a total capacity of 4GB and a bus speed of PC3-12800 (DDR3-1600), this SO-DIMM memory module is perfect for enhancing the performance of your computer. Manufactured by Hynix, a reputable brand in the industry, this DDR3 SDRAM module is reliable and efficient for all your computing needs. Upgrade your laptop's memory capacity with this sleek and compact SK Hynix memory module.