NVMe vs : Bus, Interface, and Protocol

is there a difference in m2 slots? nvme and m 2 slot difference 2 SSD still gives 10Gbits performance, whereas the 4x lanes on 'M' gives up to 20Gbits SSDs with B+M keying maximize compatibility in nvme pcie 40 in 30 slot 2 SSDs are smaller and more compact than SATA SSDs, making them ideal for smaller devices like ultrabooks and mini-PCs SSDs are typically no larger than a

nvme m2 slot laptop 2 drives are “keyed” at one end so as to prevent the end-user from inserting them in an incompatible socket PCIe NVMe drives are 'M' keyed SATA ones,