The product is a G.SKILL 4GB UDIMM 1600MHz PC3-12800 DDR3 SDRAM RAM module with a total capacity of 8GB split across two 4GB modules. It has a bus speed of PC3-12800 (DDR3-1600) and features a form factor of UDIMM with 240 pins. This RAM module is designed for use in desktop computers and is a high-quality product from a reputable brand.