The Samsung M321R4GA0EB2-CCP is a 32 GB DDR5-6400 MHz ECC Registered DIMM (RDIMM) built for enterprise and data-center class servers. It features Error-Correcting Code (ECC) and an integrated registered buffer that improve reliability, data integrity, and signal stability under heavy workloads — ideal for virtualization, database systems, cloud computing, and mission-critical environments. This module operates at ultra-fast DDR5-6400 (PC5-51200) speeds with a 1.1 V low-voltage design and uses a standard 288-pin DIMM form factor compatible with modern server platforms.