Tech Tip: What are PCIe Lanes?
First we discuss what is PCI and then PCIe Lanes PCI Express PCI Express is a serial point - to - point interconnect between two devices. Following diagram (Source: PCI Express - Wikipedia ) makes the terminology clear. A “ link ” defines the connectivity between two devices. It consists of multiple “lanes”. A lane carries one bit of information. A link normally could be 1,4,8 or 16 lanes (also known as x1 , x4, x8, x16) A lane is again a differential pair of wires that carries signal level information PCI is rarely used these days because of its low speed. In today’s high speed hungry society PCIe which is high speed is better and also it has very low pin count and other advantages compared to the PCI parallel bus PCIe Lanes PCIe paths are inward, fast, highlight point, bidirectional associations. Not at all like their antecedent PCI, they don't utilize a transport topology (with numerous hubs all tuning in and talki...