What is an slot on a motherboard used for?

This video explains how to select which slot to use on a motherboard for the best storage

PCIe SSDs Clear all ; PCIe SSD 250H NVMe PCIe Gen4 x4 3D NAND flash 1 TB; 2 TB; 4 TB RUp to 7,500 MBs WUp to 6,700 MBs ; PCIe SSD 250S NVMe PCIe Gen4

mermaid slot machine The drives just slot into the slot on the motherboard and are connected via NVMe to the CPU Image Photo of SSD drive

mezzanine slot You can also see which drive letter corresponds to which serial number with CrystalDiskInfo On your board, only one slot is connected to the