The Samsung M321R8GA0EB2-CWM is a 64 GB DDR5-5600 MHz ECC Registered DIMM (RDIMM) designed for enterprise and data-center server environments. Built with Error-Correcting Code (ECC) and a registered buffer, this memory module improves system stability, data integrity, and signal reliability for heavy-duty workloads, virtualization, and mission-critical computing. It delivers high-bandwidth performance with DDR5-5600 (PC5-44800) speeds at a low 1.1 V operating voltage, and features a 288-pin RDIMM form factor with dual-rank x4 organization for optimized compatibility with modern server platforms.