It will take either M.2 SATA or M.2 NVMe.  Whatever internal flash chip technology the drive uses is up to the drive's own controller -- the external interface is what matters. Do note that this model supports GT2 power saving mode only - not high performance mode, so you'll see about half the speed a PCIe 3 X4 drive is capable of delivering with this model system.
Hi cn someone please help. I have a Dell vostro 5471 8th gen I5 and I want to upgrade it with an ssd but I'm confused as to the compatability. I know the form factor is 2280 but what key does it support? Does it support 3d nand sata with b/m key? Does it support m key nvme gen3? Will it support nvme with b/m key?  Will it support both?   Thanks in advance 
Ssd vostro 5471 upgrade