The G.Skill Ripjaws 4GB Kit (2x2GB) PC3-12800 DDR3-1600 DIMM RAM F3-12800CL9D-4GBRL is a high-quality RAM module set designed for desktop computers. Made by G.Skill, a reputable brand in the industry, this DDR3 SDRAM memory kit includes two 2GB modules with a total capacity of 4GB. The DIMM form factor and 240 pins ensure compatibility with most motherboards, while the bus speed of PC3-12800 (DDR3-1600) provides fast and efficient performance. Manufactured in Taiwan, this RAM kit is a reliable and dependable choice for upgrading your computer's memory capacity.