What happens if I move an NVME with OS on it to another NVME slot?

2 PCIe NVMe Adapter mit PCIe Bifurcation, unterstützt 2 x Now I wonder, what happens if I connect that PCIe switch to my PCIe x4 slot?

The NVMe PCIe card allows you add PCI-e NVME SSD to your motherboard without slot, perfect solution for PC upgraded 【APPLICABLE

nvme m2 slot laptop Add up to four high-performance NVMe SSDs to a system with a single adapter in a physical x16 PCIe slot The system requires the PCIe bifurcation (lane

nvme slot types The drive I have supports SATA III, NVMe, PCIe I ordered a NVMe PCIe drive only, have to wait to test M2-1 cannot support SATA Written very