The product is a lot of 2 Micron MT8JTF51264AZ-1G6E1 8GB DDR3-1600MHz RAM modules, each with a capacity of 4GB. These DIMM modules have a total capacity of 8GB and are designed for use in computers that support DDR3 SDRAM memory. With a bus speed of PC3-12800 (DDR3-1600) and 240 pins, these modules are a reliable and efficient option for upgrading or replacing existing RAM in a computer system.