It can be used to install almost any type slot online of hardware as long as the versions are correct. The pci expansion slot is one of the most widely used methods of expansion slot. Mini ITX Atom D525 Industrial Motherboard with SIM Slot This type of connector originated in the early 1990s, and is still in use today. What is pci slot on motherboard . I want to get a decent graphics card but i also want to be able to use thunderbolt tech. A pci slot is an interface on the motherboard that allows you to put in a device that requires power, famous for coming with the first intel pentiums in 1993. In layman’s terms, imagine your desktop pc as a restaurant. Presently, there are three main pci motherboard connectors (usually referred to as slots.) 64 bit pci. Usually, these numbers also correspond to the number of pci lanes that the card supports, but sometimes these slots will run at lower speeds, especially if the. There are various ways to check the pci express slot versio...