This standard specifies the host and device interface for a DDR4 NVDIMM-N, which is a DIMM that achieves non-volatility by copying SDRAM contents into non-volatile memory (NVM) when host power is lost using an Energy Source managed by either the module or the host.
Although this standard is targeted towards DDR4 NVDIMM only, it does not preclude adoption of this standard by other implementations (e.g., DDR3 NVDIMM).