Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot?

There seem to be some Gen 4 x4 NVMe 2230 drives in stock at various shops So I have a pair of questions: 1) The HAT is Gen 3 and I read that Gen

The card physically has an X4 interface, so it could be plugged into an X4, X8, or X16 slot It can still physically only access 4 lanes (else

can i put pcie x4 in x16 slot On 12th gen motherboard, what happens if you plug a Gen 3 SSD into a Gen 4 Slot and

cancan saloon slot Here we can see the device supports up to 8 GTs thence it is Gen3 2 Get the generation of the PCIe itself $ sudo lspci -vv -s 08 grep -w