HP 4 GB 800 MHz ECC FBD DDR2 SDRAM DIMM
HP PC2-6400 4GB, 4 GB, 1 x 4 GB, DDR2, 800 MHz
HP PC2-6400 4GB. Component for: PC/Server, Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR2, Memory clock speed: 800 MHz, ECC