Upgrade your computer's memory with this Mushkin 4GB DDR2 RAM set, consisting of two 2GB modules. Designed for use with HP2-6400 systems, this RAM offers reliable performance and efficient multitasking capabilities. With a total capacity of 4 GB, and 2 GB per module, this RAM is perfect for users looking to boost their computer's speed and improve overall performance. Trust in the Mushkin brand, known for providing high-quality computer components and parts. Don't let slow processing speeds hold you back any longer - invest in this 4 GB set of Mushkin DDR2 RAM and experience a faster, more efficient computer.