By connecting to the motherboard's circuitry when an expansion card is inserted into a slot, data can move between the card and the CPU or other parts. The size, pin arrangement, and data trrummy bonus appansfer capacities of each kind of expansion slot are unique. To enable high-speed communication between the installed card and the motherboard, for example, PCIe slots make use of a number of lanes. The potential bandwidth for data transfer increases with the number of lanes in a slot; this is especially crucial for high-performance applications like gaming and video editing.