The product is a set of 2 Micron 4GB DDR4 2400MHz laptop RAM modules. These RAM modules have a total capacity of 8GB, with 4GB of memory per module. They are designed for use with laptops and are in SO-DIMM form factor. The RAM modules have ECC memory features and a bus speed of PC4-19200 (DDR4-2400). The manufacturer warranty for these modules is a lifetime, and they are tested for quality and performance. Made in China, these DDR4 SO-DIMM modules are a reliable choice for upgrading or replacing RAM in laptops. These sticks of ram were pull out of a working machine.