How to identify what slot type a particular PC card is?

Which type of motherboard expansion slot has four types ranging from x1 to x16 with each type having a different length of expansion slot?

PCIe : PCIe is the most prevalent expansion slot type in modern computers It offers high-speed data

expansion slot function PCI Express: The best type of expansion slot to have in your PC is the PCI Express, also written as PCIe Without boring you, the PCI Express

expansion slot definition computer microSD card slot L4; L5 Speeds and Feeds Compute APU 6 nm AMD APU CPU Expansion microSD UHS-I supports SD, SDXC and SDHC External connectivity for