Intel’s Optane Memory M.2 caching drives are being updated. The new drives gain a new model number (M10), the same power management improvements introduced by the Optane SSD 800P, and a capacity increase to 64GB. Intel’s Optane Memory caching software has also been enhanced since its introduction with the new option of accelerating a hard drive that isn’t the boot drive.

Source: AnandTech – The Intel Optane Memory M10 (64GB) Review: Optane Caching Refreshed