The product is a set of two 4GB DDR3 SDRAM memory modules from Kingston designed for laptops. These SO-DIMM modules have a total capacity of 8GB, with each module providing 4GB of memory. The bus speed of the memory modules is PC3-12800 (DDR3-1600), and they have a voltage of 1.5V. The memory modules have 204 pins and are ideal for upgrading or replacing existing memory modules in laptops for improved performance and functionality.