1GB DDR2 667 ECC CROSSHAIR MemoryRAM, Memorystock Part No: 731ms-731
1Gb 1024MB 667MHz DDR2-667 PC2-5300, 240p DIMM, ECC non-Registered Memory RAM, 1.8v. This module is installed in pairs for Dual Channel mode. For a kit buy Qty 2. Compatible memory for CROSSHAIR