This open box listing from Data Memory Systems includes two 1GB RAM modules with a total capacity of 2GB. The modules are PC2-5300S and have a bus speed of 667 MHz. These modules are perfect for upgrading your computer's memory and improving its overall performance. Whether you're using your computer for work, gaming, or streaming, these RAM modules will help ensure that your computer runs smoothly and efficiently. Don't miss out on this opportunity to upgrade your computer's memory with these reliable and high-quality RAM modules.