Can someone explain NVMe to me? The 4x PCIe lanes doesn't

2 slot at the same time The reality is a little more complicated---for example, a single slot only has four PCI Express lanes, a quarter of

Current motherboards have multiple slots Some of those slots share PCI lanes with the PCIe slots In the one you mentioned it appears that

m2 pcie slot A single card can also have both key types The type of key determines the number of PCIe lanes the socket supports A B key holds one or two PCI express lanes,

m2 slot mainboard However, there's only x2 and x4 lanes accessible when using a form factor with the PCIe bus which translates to a maximum transfer speed of up to 4GBs Is