This desktop memory module is from ProMOS Technologies and has a capacity of 512MB with a form factor of DIMM. It is a DDR2 SDRAM type and has a bus speed of PC2-5300 (DDR2-667). The module has only one module and is rated at 1Rx8. This memory module is compatible with various computer systems and can greatly improve the overall performance of your desktop.The ProMOS memory module is perfect for those who want to upgrade their desktop computers without having to purchase a new system altogether. It is a reliable and efficient memory module that can enhance the speed and performance of your computer. This item falls under the categories of Memory (RAM), Computer Components & Parts, and Computers/Tablets & Networking. Get your hands on this high-quality desktop memory module today!