M vs : What's the Difference?

ThinkSystem Adapters Product Guide > Lenovo Press sata m 2 slot If a system has an PCIe slot, an SATA SSD with identical keying will fit in the slot but will not work, and vice versa There are some systems that sata m2 slot Since your notebook has an Intel core processor, the slot supports both NVMe and SATA SSD's NVMe SSD's have faster readwrite speeds than

sata 3 slot SATA SSDs and SSDs that use two PCI Express lanes tend to use keys B and M to maximize compatibility, since both connectors can deliver both