HP 647899-B21 8GB (1x8GB) PC3-12800R DDR3-1600 Memory Kit

The HP 647899-B21 is an 8GB registered DDR3-1600 memory module designed for use in HP ProLiant servers and compatible enterprise systems. As an HP-qualified part, it has been tested and validated to work within HP's server ecosystem, providing peace of mind for administrators who need guaranteed compatibility and support. The module operates at PC3-12800R speeds with CAS-11 latency and includes ECC (Error Correcting Code) functionality, which detects and corrects single-bit memory errors to maintain data integrity in production environments.

This single-rank DIMM is well suited for expanding memory in Gen8-era ProLiant servers that are still in active service. Its registered design allows the server's memory controller to handle larger numbers of DIMMs per channel, which is essential when scaling up total system memory. While DDR3 is no longer the current standard, many organizations continue to operate servers built on this platform, and sourcing HP-branded modules ensures firmware-level compatibility without triggering memory mismatch warnings. For environments running virtualization, databases, or application servers on older ProLiant hardware, this module provides a cost-effective upgrade path.