Kingston Technology 8GB DDR4 2133MHz SODIMM Memory Acer, Dell, Fujitsu, Lenovo Laptop KCP421SS8/8 One 8GB Module of 2133MHZ DDR4 Memory Backed by a lifetime warranty and free technical support From the industry leader in PC memory Designed and tested for compatibility in various Acer, Dell, Fujitsu, HP/Compaq and Lenovo Laptops