DELL 2GB DDR2 667, 2 GB, 1 x 2 GB, DDR2, 667 MHz, 240-pin DIMM DELL 2GB DDR2 667. Internal memory: 2 GB, Memory layout (modules x size): 1 x 2 GB, Internal memory type: DDR2, Memory clock speed: 667 MHz, Memory form factor: 240-pin DIMM, ECC