The CT25664AA667 is a high-performance DDR2 module designed by Crucial to deliver exceptional speed and reliability for desktop computers. With a configuration of DDR2-667 and a density of 256Mx64, this module provides a total capacity of 2GB, making it an ideal upgrade for users seeking to enhance their system's performance. Operating at a frequency of 667MHz, it ensures quick and efficient data transfer rates, allowing for smoother multitasking and improved overall computing experience. Designed to fit in 240-pin DIMM slots, the CT25664AA667 is compatible with a wide range of desktop systems that support DDR2 667 (PC2-5300) memory technology. Crucial, being a trusted name in the memory industry, manufactures this module with high-quality components to ensure durability and reliability, offering an excellent solution for users looking to extend the lifespan and capabilities of their computers.