P73129-B21 HPE 16GB 4800MHz DDR5 ECC RDIMM Smart Memory

P73129-B21 Overview

The HPE P73129-B21 is a 16GB DDR5 Registered DIMM (RDIMM) designed for HPE ProLiant Gen11 servers, running at 4800MHz to deliver strong bandwidth and efficiency for modern enterprise workloads. As part of the HPE SmartMemory series, it ensures validated compatibility, optimized performance, and enhanced reliability when used in supported HPE platforms.With ECC (Error-Correcting Code) support, this module maintains data integrity by detecting and correcting memory errors, reducing downtime in mission-critical environments. The registered (buffered) design lowers the electrical load on the memory controller, enabling higher capacity and scalability in multi-DIMM configurations.