There are a variety of expansion slots on a motherboard, but the most common are the PCIe slots. A PCIe slot is a type of expansion slot that is typically used for adding additional graphics cards, hard drives, and other add-in cards.
PCIe slots are also used for connecting high-speed devices, such as RAID controllers and flash storage devices. .
PCIe slots are usually located on the back of a motherboard, near the CPU. They are usually 24-pin connectors that allow for multiple devices to be plugged into them at once.
A PCIe slot can also be used to connect a peripheral card to the motherboard, allowing it to be used as a daughter card.
Some motherboards have more than one PCIe slot, while others have only one. Some motherboards also have hybrid slots that combine features of both PCIe and AGP slots.
PCIe slots allow for faster data transfers than AGP slots and are more common on newer motherboards. Because they are so fast, they are often used to add extra graphics cards or hard drives to a computer system.
Because they are located near the CPU, PCIe slots are also often used to connect peripheral cards to the motherboard.
