FYI. it's M.2 connector that can support SATA or PCIe (or even USB, with A or E key). NVMe is a protocol or command set that runs over some physical interface,

FYI. it's M.2 connector that can support SATA or PCIe (or even USB, with A or E key). NVMe is a protocol or command set that runs over some physical interface, like PCIe, RDMA, FC or TCP. So you can have M.2 SATA (not NVMe) or M.2 PCIe (NVMe) drives, both in the bubblegum form factor. The drive from the article uses U.2 connector, which also provides SATA and PCIe (some desktop boards did come with such a connector, parallel with M.2 slot).