Fujitsu Memory 8GB 2x4GB FBD667 PC2-5300F d ECC, 8 GB, DDR2, 667 MHz, 240-pin DIMM Fujitsu Memory 8GB 2x4GB FBD667 PC2-5300F d ECC. Internal memory: 8 GB, Internal memory type: DDR2, Memory clock speed: 667 MHz, Memory form factor: 240-pin DIMM, ECC