Apple Memory 4 GB FB-DIMM 240-pin DDR2 667 MHz, 4 GB, DDR2, 667 MHz, 240-pin DIMM
Apple Memory 4 GB FB-DIMM 240-pin DDR2 667 MHz. Internal memory: 4 GB, Internal memory type: DDR2, Memory clock speed: 667 MHz, Memory form factor: 240-pin DIMM, ECC