What Are PCI Slots on a Motherboard?

PCI slots are the connectors on a motherboard that allow you to plug in PCI devices. These devices can be anything from sound cards and video cards to network cards and USB controllers.

PCI slots are also used to connect other types of expansion cards, such as SATA and IDE controllers.

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The number of PCI slots on a motherboard varies, but most boards have at least two. Some high-end boards have as many as eight PCI slots, which is useful if you want to add a lot of expansion cards to your system.

If you’re not sure what kind of expansion card you need for your system, you can usually find out by looking at the manual for your motherboard. The manual will list all of the expansion slots and tell you what kind of devices can be plugged into each one.