On 12th gen motherboard, what happens if you plug a

On the it says PCIESATA does that mean I cant put gen 4 there? At the moment I have a WD PC SN530 PCIe Gen3 x4 NVMe installed on slot

Limiting it to PCIe x4 merely halves the maximum bandwidth, so the linear thruput will be lower But very rarely do you have long, linear

genie 168 slot 2 Slot is from the Ryzen 7 5700G then it will only support PCIe Found this tech site that explains that a Motherboard can have both PCIe and slots:

gen 4 nvme in gen 3 slot Eight NVMe SSD slots on a PCIe x16 card Silent operation Add your own ultra-fast SSDs for Mac, Windows, and Linux