What is an slot on a motherboard used for?

Nowadays, it is widely used for magnetic hard drives and SSDs in format as well as for the slot In the case of SSDs, it is

Nowadays, it is widely used for magnetic hard drives and SSDs in format as well as for the slot In the case of SSDs, it is

m2_1 slot 2 expansion card to add an additional Slot to your PC ATX motherboards have ample slots but if you have a small form factor mATX motherboard (usually

m2 expansion slot There are several connector types that SSDs use to interface with a computer, including SATA, PCIe, , , mSATA, SATA Express, and even none