Which slot should I use for my SSD?

Where exactly the slot for an SSD is located, depends on the type of motherboard you have Often, the slot is located near your PCIe

An M2 PCIe SSD solid state drive storage slot on a motherboard, ssd in motherboard slot ssd in motherboard slot Stock Photo Hard disk SSD m2 on

m2 slot screw Your are using a ThreadRipper Motherboard correct? The Slots closest to the CPU which are controlled by the CPU is the fastest for NVME Type

m2 nvme slot Biostar ; 2, 4 x DIMM DDR4-4933+ ; 3, 4 x SATA III Connectors ; 4, 1 x PCIe x4 Slots ; 5, 1 x PCIe x4 Slots ; 6, 1 x PCIe