The Elixir 512MB PC3200 DDR-400MHz non-ECC Unbuffered RAM is a high-quality memory module designed for desktop computers. With a total capacity of 512MB and a bus speed of PC-3200 (DDR-400), this DIMM module is reliable and efficient for improving the performance of your system. The lifetime manufacturer warranty ensures long-lasting support, and the 184 pins make it compatible with a wide range of systems. Made in the United States, this RAM module is a dependable choice for enhancing your computer's memory capacity.