The product is a set of two SK hynix DDR4 SDRAM laptop RAM sticks with a total capacity of 16GB. Each stick has a capacity of 8GB and operates at a bus speed of 2400MHz. They have a Form Factor of SO-DIMM and are designed for use in laptops. The RAM sticks come with a Lifetime manufacturer warranty and are ECC memory features. Made in China, these RAM sticks provide fast and reliable memory performance for your computer system.Ram was removed from a working laptop. No further testing done. No Returns.