The Vintage Samsung 64MB PC100 168 Pin Non-ECC Desktop DIMM KMM366S823CTS-GL is a single unit SDRAM memory module with a total capacity of 64MB. This module is designed for desktop computers and has a bus speed of PC-100. With 168 pins, it offers reliable performance for older systems that require non-ECC memory technology. Made by Samsung, this DIMM module is a quality product that ensures compatibility and stability in computer systems.