2 Types of SSDs: SATA and NVMe

On my motherboard, one NVME slot goes to the CPU ,two slots are off the chipset, and one slot can take either an M

2 NVMe SSD typically wants PCIe x4, there's only one possibility: M key It might be noteworthy that slots with multiple keys are very rare, if

m2 slot pc 2 supports both SATA and PCIe, an module may only be inserted in either one of the two interfaces, so check your motherboard documentation

m2 sata vs nvme slot The top slot which my older gen 3 drive is in is the one that has dedicated PCIE lanes direct to the CPU from the NVME slot though and is the