What exactly does the spec “PCIe x16 slot ” mean?

PCIe slots are used to connect graphics cards, sound cards, other interface cards and some

PCI Express lanes are paths between the motherboard chipset and PCIe slots or other devices that are part of the motherboard, such as the

pcie 40 gpu in 30 slot The meaning of EXPANSION SLOT is a socket on the motherboard PCIe expansion slots, four storage bays, and support for up to 450 W

pcie x16 expansion slot In the case of PCIe x16, there are 16 data lanes in the slot Each data lane is capable of bidirectional data transfer, meaning data can flow in both directions