Tested - The Hynix HYMP564U64CP8-Y5 AB PC2-5300U 667MHz 512MB 240-Pin DDR2 RAM Module is a high-quality memory module designed for desktop computers. With a total capacity of 512MB and a bus speed of PC2-5300 (DDR2-667), this RAM module offers reliable performance and stability for your computing needs. The 240-pin design allows for easy installation and compatibility with a wide range of motherboards. As a trusted brand in the industry, Hynix ensures top-notch quality and reliability for your system's memory needs.