The Crucial 4GB DDR4 2666MHz SODIMM Laptop RAM is a reliable and efficient memory module designed for laptops. With a total capacity of 4GB and a bus speed of PC4-21300 (DDR4-2666), this RAM offers fast and smooth performance for your computing tasks. The module is manufactured with quality components and features ECC memory for error correction, ensuring data integrity. With a 1-year manufacturer warranty, you can trust in the durability and performance of this Crucial RAM for your laptop.