How Many Slots are On a Motherboard?

Question regarding SATA ports ports on Motherboard : rbuildapc m 2 sata slot on motherboard This video explains how to select which slot to use on a motherboard for the best m2 nvme slot 2 ports This port is found mostly on the new motherboards But, they can be of two types If it is SATA port, the notch

m2 slot SATA is a standard interface used to connect storage devices to a motherboard Instead of slots, motherboards have SATA connectors or ports SATA