512MB PC2-5300 DDR DIMM
SMART Modular SMSO-SO667/512 Memory Module, 0.5 GB, 1 x 0.5 GB, DDR2, 667 MHz
SMART Modular SMSO-SO667/512 Memory Module. Internal memory: 0.5 GB, Memory layout (modules x size): 1 x 0.5 GB, Internal memory type: DDR2, Memory clock speed: 667 MHz