Cisco 2GB PC2-5300 DDR2-667MHz ECC REG Memory ModulePart Number:15-10957-01 / VR5VR567218FBW-SF / SG572568FG8P6ILHJ2Product TypeMemory ModuleBrandCiscoCapacity2GBMemory TypeDDR2-667MHzBus TypePC2-5300Error CorrectionECC RegisteredConditions:UsedNOTE: This Memory Is For Server Only , WILL NOT WORK ON..