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 ...

PCI Express (PCIe) was introduced in 2002 as "Third Generation I/O" (3GIO), and by the mid-2000s, motherboards had at least one PCIe slot for graphics ... serial lanes (x1-x32) that transfer ...