Question: are all m.2 ssd nvme?
Answer: However, not all M. 2 slots support NVMe (some only support SATA, some only NVMe, and some either), so even if you have an M. 2 slot you'll need to double-check that yours will allow for an NVMe drive. The primary motherboard I used for these tests has both 6Gbps SATA, as well as an M.