805667-B21-AM AddOn 4GB DDR4-2133MHz Unbuffered ECC Single Rank x8 UDIMM

805667-B21-AM Overview

The is a high-quality compatible 4GB DDR4-2133MHz Unbuffered ECC UDIMM from AddOn Networks. It is specifically designed as a direct replacement or upgrade for HPE ProLiant Gen9 series servers and workstations that use unbuffered ECC memory. This single-rank x8, low-voltage (1.2V) module with CL15 latency provides reliable error-correcting performance suitable for entry-level servers, small business environments, and applications where registered memory is not required. Although DDR4-2133 is now a previous-generation speed compared to faster DDR4 and DDR5 modules, this memory remains an excellent and cost-effective solution for maintaining, repairing, or expanding the RAM capacity of older HPE ProLiant Gen9 systems such as the DL20 and ML10 series.