What Are PCIe Slots Used For? - Devices and Expansion

Some low-budget computers are sold with integrated video and have neither a PCI-Express x16 slot or an AGP slot With that kind of computer you're stuck using a

PCI Express expansion slots Desktop systems often offer a x16 slot intended for graphics cards and a x1 slot for PCI Express peripherals

pcie 1 slot 1 x PCI Express x16 slot, supporting PCIe and running at x16 * The PCIEX16 slot shares bandwidth with the M2C_CPU connector

pcie slot x16 If it seems like you never have enough USB ports for your devices, then internal expansion via an open PCI Express x16 slot may be an option You can add