Upgrade your laptop's performance with the SK hynix HMA851S6CJR6N DDR4 SO-DIMM memory module. Offering a total capacity of 4GB and a speed of 2666MHz, this module is designed to enhance your system's multitasking capabilities and handle demanding applications with ease.The DDR4 technology provides faster data transfer rates and power efficiency, making it an ideal choice for users looking to improve their laptop's speed and reliability. The 260pin interface ensures a secure connection and compatible fit for a wide range of laptop models.