https://www.theregister.co.uk/2019/04/10/intel_optane_qlc_h10_card/

Intel has combined its Optane 3D XPoint memory with up to a terabyte of QLC flash to provide a responsive, high-capacity gumstick card for lappies.

The H10 card comes in a single-sided M.2 format with 16GB of Optane and 256GB flash capacity, moving up to 32GB with both the 512GB mid-range model and 1TB high-end version.