What Are Expansion Slots Used For?

An expansion slot is a socket on a computer motherboard that accepts an expansion card (or circuit board), which provides additional features and functions not available on the motherboard. The most common type of expansion slot used today is the PCI Express (PCIe) slot, which is used to connect graphics cards, sound cards, network cards, and other peripherals.

Other types of expansion slots include the older PCI and ISA slots, as well as newer slots such as the AGP, AMR, and CNR slots.

Expansion slots are important because they give users the ability to upgrade their computers with new features and functions. For example, if you wanted to add a new graphics card to your computer, you would need an expansion slot for it.

Similarly, if you wanted to add a new sound card or network card, you would also need an expansion slot. Expansion slots are also used for connecting external devices such as USB hubs and firewire ports.

While most modern computers come with at least one PCIe slot, some computers may have multiple PCIe slots (especially if they’re intended for gaming or other high-end uses). If you’re looking to upgrade your computer with a new graphics card or other PCIe device, make sure that you have an available PCIe slot before making your purchase.