What Else Is An WiFi Slot Good For?

I'm upgrading one of the 1TB drives to a 2TB I will use the MSI Expander on my Creator X299 motherboard to install the new drive so I can

card Adapter add-in card types supported by this include all SINGLE-SLOT and DUAL-SLOT PCIe CEM adapter add-in cards without integrated air movers

m2 slot types , pronounced m dot two and formerly known as the Next Generation Form Factor , is a specification for internally mounted computer expansion cards

m2 sata slot -Most laptops have a wifi card that uses an slot Is there any difference between this slot and slots meant for NVME drives? Can they also