The product is a lot of 20 G.Skill Ripjaws 8GB DDR4 RAM sticks, with each module having a capacity of 8GB. These SO-DIMM modules have a bus speed of PC4-19200 (DDR4-2400) and a total capacity of 8GB per module. The product has been tested and passed, ensuring reliability and performance in computer systems requiring DDR4 SDRAM memory. With its high capacity and trusted G.Skill brand, this RAM upgrade is a great choice for enhancing the speed and efficiency of your computer.