PCI Express is the standard platform for all current PC based systems and also for the future. Today’s State-of-the-art motherboards normally have a couple of PCI Express slots but only one or two PCI/PCI-Xslots. The PCI Express bus is a point to point connection allowing full speed for every single slot. The Express bus is freely scaling and is available with 1 lane (x1), 4 lanes (x4), 8 lanes (x8) and 16 lanes (x16). For mechanical compatibility connectors may have more lanes than are connected to the motherboard.