Enhance the performance of your desktop with this Kingston 4GB Kit 2x2GB DDR2 800MHz PC2-6400U Desktop PC Memory RAM. The package includes two 2GB high-quality green memory modules with a capacity of 800MHz, making your desktop faster than older DIMMs. These DIMM form factor memory modules have 240 pins and operate with PC2-6400 bus speed. The packet content includes two 2GB 800MHz desktop memory modules, perfect for upgrading your desktop.