The Samsung 128MB PC2100S-25330-C0 M470L1624DT0-CB0 is a DDR SODIMM RAM module with a total capacity of 128MB. Made by Samsung in Korea, this unit has a PC-2100 bus speed and 200 pins. Although the product is a single module, it is designed to provide reliable memory performance for your computer system. With its high quality and compatibility, this RAM module is a great choice for enhancing the speed and efficiency of your computing experience.