Do All Motherboards Have PCIe Slots?

All motherboards have some kind of expansion slot. The most common is the PCI Express (PCIe) slot. PCIe is the success story of the PCI bus, which was originally developed to be a high-speed replacement for the ISA bus. PCIe slots come in different sizes, the most common being x16.

This means that a PCIe card can be inserted into any x16, x8, x4, or x1 slot and it will work. The only exception is when a card specifically requires an x16 slot to work.

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The other common type of expansion slot is the PCI slot. PCI slots are not as fast as PCIe slots and are being replaced by PCIe slots.

Nevertheless, many motherboards still have PCI slots because they are needed to support older devices. For example, many sound cards still use the PCI bus.

So, to answer the question, do all motherboards have PCIe slots? The answer is no, but most do. Older motherboards might have only PCI slots or a mix of PCI and PCIe slots.