The Samsung M321R2GA3EB2-CCP is a high-performance 16 GB DDR5-6400 MHz Registered DIMM (RDIMM) designed for enterprise and server environments requiring reliable, error-checked memory. Featuring ECC (Error-Correcting Code) and a registered buffer, this module enhances system stability and data integrity under heavy workloads such as virtualization, large databases, cloud computing, and mission-critical infrastructure.