Kingston 1 GB 1Rx8 PC2-6400U DDR2-800 RAM KCM633-ELC 1.8V 240 Pin 800Mhz NON ECC TESTED Number of Modules: 1 Capacity per Module: 1 GB Bus Speed: PC2-6400 (DDR2-800) Type: DDR2 SDRAM Number of Pins: 240