What Are the Small PCI Slots Called?

PCI slots are small, rectangular slots on the back of a motherboard that allow for expansion cards to be installed. The most common type of PCI slot is the standard PCI slot, which is the most common type of expansion slot on desktop and laptop computers.

A PCI slot is about 8.5 by 2.

4 inches (21 by 6 cm), which makes it about one-third the size of a standard expansion card slot. The smaller size means that a PCI slot can be placed closer to the processor and other components on the motherboard, improving performance.

PCI slots are typically used to install expansion cards such as graphics cards, sound cards, and USB controllers. Some motherboards include several types of PCI slots, which allows for different types of expansion cards to be installed at the same time.

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