The Kingston Valueram 64MB KVR100X64C2/64 CE memory upgrade module is a single DIMM module with a total capacity of 64MB. It is designed for SDR SDRAM technology with a bus speed of PC-100. This memory upgrade module is ideal for enhancing the performance of computers, especially for those in need of ECC memory features. Made by Kingston, a reputable brand in memory components, this module is sealed to ensure its quality and reliability. Perfect for upgrading your computer system in the United States.