What is the purpose of having more than 1 PCIe x16 slots?

PCI System Architecture pci 1 slot A PCIe x1 slot has exactly one PCIe lane to use, and the same rule will generally apply moving up the ladder through x4, x8, and x16 slots Each available PCIe pcie 40 in 30 slot According to PCIE Expresscard , a x1 card can be inserted into the x4, x8, and x16 connectors 15 This is referred to as up

pcie 40 in pcie 30 slot PCI is a bus topology while PCIe is point-to-point · PCIe has the concept of lanes, where 1–16 serial lanes can