Expansion Slots

Types of Slots on a Motherboard - Small Business - expansion slot types In this picture, there are three different types of expansion slots: PCI Express, PCI, and AGP PCI expansion slot types If not limited to 'expansion card work electrically with PCIe interface in the slot' then more weird things can be put into it For example fan

expansion slot PCIe is a high-speed serial expansion bus standard that is commonly used in modern computer systems PCIe slots