Memory module 4GB DDR2 533MHz ECC 2x2GB DIMMs
Apple Memory module 4GB DDR2 533MHz ECC 2x2GB DIMMs, 4 GB, DDR2, 533 MHz
Apple Memory module 4GB DDR2 533MHz ECC 2x2GB DIMMs. Internal memory: 4 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, ECC