This message was posted on behalf of Intel Corporation
Thanks for posting in our forum.
To answer your question, the Intel® Optane™ Memory module can be used also as an SSD. Just to double check, do you have the 32GB module?
This because the module of 16GB can be easily filled up with just the installation of the Operating System and don't leave you enough space for programs.
We do suggest to use it as an accelerator as it will improve the quality of your SATA drive.
Please let us know if you require further assistance.