What are PCIe Slots in PC?

Figure shows a motherboard with two x1 PCIe, two x16 PCIe, and three PCI expansion slots Notice that the PCIe x16 slot has a retention

Adds Expansion Card Slots to Any Computer with a Thunderbolt Port: ; Echo Express Pro – Supports two standard width, full-length x16 PCIe cards, or one

pcie 20 x1 slot slots and one x1 slot There is also the C7X99-OCE-F Or if you want the x16 slots to actually be x16

pcie x16 expansion slot All consumer boards only have a single electrical x16 slot Some of the more expensive boards have the ability to bifurcate to two