The Qimonda HYS64T64000HU-3S-A 512MB DDR2 667MHz PC2-5300U Desktop RAM is a high-quality memory module designed for desktop computers. With a total capacity of 512MB divided into two units, each with a capacity of 512MB, this RAM offers reliable performance for your system. Manufactured in the United States by Qimonda, a trusted brand in memory technology, this DDR2 SDRAM module is ideal for boosting the memory capacity of your computer for improved speed and efficiency.