The Huawei Mate 40 RS is a special edition of its new flagship smartphone series with 12GB of RAM and 512GB of internal storage. A new report indicates that the latter spec is handled not by a standard mobile ROM module but by one developed by the OEM itself. It is allegedly faster than state-of-the-art UFS 3.1 flash memory found in some top-end 2020 devices.
https://www.notebookcheck.net/A-Huawei-Mate-40-RS-teardown-reveals-an-ultra-fast-in-house-memory-chip.501799.0.html
probably fake news from china. i don't belive it