Crucial 2GB Kit (1GBx2) DDR2-667MHz (PC2-5300) Non-ECC UDIMM Desktop Memory Upgrades CT2KIT12864AA667 / CT2CP12864AA667 Technology: DDR2 SDRAM Storage Capacity: 2GB Form Factor: 240-pin DIMM Memory Speed: 667MHz DDR2-667/PC2-5300 Memory Channels: Dual