Expansion slot Definition & Meaning - Merriam-Webster

PCI Express 3 Slot Expansion - pcie expansion slot PCIe x8 slot, not a PCIe x16 one Motherboards with high chipset heatsinks or other obstructions in front of the expansion slots may be pcie 30 x4 slot For example, a PCIe x8 card could plug into a PCIe x16 slot This customization is accomplished by installing a new and often better device into an expansion

pcie m2 slot The smallest of the PCI Express slots, your standard PCI Express x1 slot is essentially your starting point for most expansion cards, especially port expansions