The HPE 689375-001-RFB 8 GB memory module adds system memory to a desktop computer that supports this type of DIMM. It is listed as PC3-12800 memory with a 1600 MHz clock rate.
The module uses the 240-pin DDR3 DIMM format and is unbuffered, non-ECC memory with CAS latency 11. These details describe its interface and memory type, helping distinguish it from other DDR generations and buffered or ECC modules.
This is a single 8 GB memory module, identified by HPE reference 689375-001-RFB. Its practical role is to provide additional RAM in a compatible system.