512MB (2x256MB), DDR2 400MHz, ECC, DIMM
HP 512MB DDR2-400, 0.5 GB, 2 x 0.25 GB, DDR2, 400 MHz
HP 512MB DDR2-400. Component for: PC/server, Internal memory: 0.5 GB, Memory layout (modules x size): 2 x 0.25 GB, Internal memory type: DDR2, Memory clock speed: 400 MHz, ECC