The PHS-memory 2GB RAM is a powerful memory module specifically designed for the Samsung NP-R509-XA02ZA model. With a memory clock frequency of 667 megahertz (MHz) and a SO-DIMM form factor, this DDR2 RAM offers reliable and efficient performance for various applications. The memory has a capacity of 2 gigabytes (GB) per module and is equipped with 200 pins, allowing for easy integration into compatible systems. With a voltage of 1.8 volts (V), this RAM ensures stable functionality and is ideal for users looking to optimize the performance of their Samsung laptop. The 100% compatibility with the mentioned model ensures that the RAM can be installed seamlessly to enhance system speed and multitasking capabilities.