The HPE 823170-001-RFB is a refurbished memory module for compatible PC or server systems. It provides 8GB of DDR4 memory in a single module, making it a straightforward way to add memory capacity to a system that uses this DIMM type.
The module is an unbuffered UDIMM with a 288-pin DIMM form factor. It is rated at 2133MHz as PC4-2133P-E-15 memory, with single-rank x8 organization and CAS latency 15-15-15. These specifications describe the module's memory format and operating speed.