NVMe vs vs SATA vs PCIe: What are these SSDs?

Should NVMe drives be plugged into PCIe x16 slot for full readwrite nvme gen 4 in gen 3 slot Best Prime Day Solid-State Drive Deals This Week* · Samsung 990 Pro 2TB NVMe Gen4 Solid-State Drive — $ · Crucial P3 Plus 2TB M nvme pcie 40 in 30 slot Hi there, I'm trying my first build and I bought a samsung 980 PCIe NVMe SSD which is a PCIe Gen x4, NVMe interface

nvme m2 slot 1x SSD slot , 1x SSD Combo (NVMe PCIe Gen3 1x 2280 NVMe Gen 3 slot + 1x 2280 Gen 4 ; 1x 2280 NVMe Gen