Higher performance and durability! Western Digital Development LLF Low Latency Flash

  According to AnandTech, Western Digital is developing its own low-latency flash memory, which will provide higher performance and durability than traditional 3D NAND, and is ultimately designed to compete with Intel's Optane storage.

In this week's Storage Field Day, Western Digital talked about its new low-latency flash NAND. This technology is suitable for use between 3D NAND and DRAM, similar to Intel's Optane storage and Samsung's Z-NAND. Similar to Western Digital, LLF memory will have "in the microsecond range" of access time, using 1 bit per cell and 2 bit per cell architecture.