Convert WiFi Slot to NVMe SSD Slot!

Since technology is developing gradually, more Eglobal Barebone Mini PCs with SSD slot are coming out PCIE NVME, SATA AHCI and PCIE NVME

Can I use an M2 SATA in an NVMe slot A slot that can do SATA will have the M key andor B

m2 nvme slot Key Types All drives are “keyed” at one end so as to prevent the end-user from inserting them in an incompatible socket PCIe NVMe drives are 'M'

m2 pcie 40 in 30 slot Or all three ports will perform the same with a standard 2280 drive?? Planning on a 2 TB Samsung NVMe 980 Pro as my boot drive Link to