Memory and storage have been separate in computers for decades, but that’s changing.

Hewlett Packard Enterprise took a step toward merging the two with its new “persistent memory” announced this week. A persistent memory module combines 8GB of DRAM and 8GB of flash in a single module that fits in a standard server DIMM slot.

DRAM operates at high speed but it’s relatively expensive, and if a server shuts down unexpectedly any data in DRAM is lost. Flash is slower but it’s nonvolatile, meaning it retains data when the power source is removed.

HPE says its persistent memory modules, known as NVDIMMs, combine the speed of DRAM with the resilience of flash.

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