Dell AB663418 16 GB memory upgrade is a DIMM module for adding memory to a compatible computer or server. Dell identifies it as DDR4 SDRAM with a 3200 MHz speed rating, providing a clearly specified option for a system memory upgrade.
The module uses a 288-pin DIMM form factor and is unbuffered, with single-rank X8 chip organization. It also supports ECC error checking. Dell specifies that it is not compatible with non-ECC memory or registered DIMMs (RDIMM).