PCIe slots come in different sizes: x1, x4, x8, x16, and very rarely x32. The number after the "x" tells you how many lanes that PCIe slot has. For example, a PCIe x4 slot has 4 lanes. Q ...

Unlike its PCI predecessor, which used a shared bus, PCI Express is a switched architecture of up to 32 independent, serial lanes (x1-x32) that transfer in parallel. Each lane is full duplex (see ...