Samsung M393T2950GZ3-CD5, 1 GB, 1 x 1 GB, DDR2, 533 MHz, 240-pin DIMM Samsung M393T2950GZ3-CD5. Internal memory: 1 GB, Memory layout (modules x size): 1 x 1 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, Memory form factor: 240-pin DIMM, CAS latency: 4, ECC