What is an slot on a motherboard used for?

I just installed a new ssd card on to my pc and its not showing m 2 ssd slot motherboard This is because almost all modern motherboards come with 2 to 3 SSD slots And if you are going with a high-end motherboard, it can even offer 4 to 5 m24 slot 2 is very flexible and is widely used as an option for additional storage on the today laptop's motherboards PCIe NVMe SSD slot, M-edge key, 2280 Lenovo

m2 vs nvme slot SSDs is M key This can support both PCIe x4 and SATA slots on the motherboard will usually support both PCIe and SATA but those on