This Kingston DDR2 RAM module has a capacity of 1GB and a bus speed of PC2-5300 (DDR2-667). It is designed to be unbuffered and has ECC protection for ensuring data integrity. The module is compatible with 240-pin DIMM slots and has a form factor of DIMM. This RAM module is ideal for enhancing the performance of your computer by providing additional memory capacity and speed. It is suitable for use in various computer components and parts, including memory (RAM) and computers/tablets & networking. Upgrade your system's memory with this high-quality Kingston DDR2 RAM module.