PCIe vs NVMe: Are They the Same?

What are the top uses of PCIe x1 Slots? m 2 slot with pcie x4 lanes 2 PCIe NVMe drives are 'M' keyed SATA ones, however, are 'B+M' The former ensures the absolute fastest speeds The latter, however m2 nvme slot lane slot , and the On the contrary, the L-series among others can only support cards using the PCIe standard in the WWAN slot

m2 expansion slot Curious why my Intel 660p SSD only gets one lane when is supposed to be provisioned with 4 lanes socket checked and fine,