HP P16838-001 is a memory module for adding or replacing memory in a compatible workstation. It combines 16GB capacity with the DDR5-5600 specification in a UDIMM format.
This variant is listed as ECC nM, identifying its error-correcting-memory category and non-Micron designation. HP’s service documentation lists this exact part number among the memory modules for the Z2 SFF G1i workstation. The part number helps distinguish it from other 16GB modules with different ECC or memory-component variants.