1 x PCI Express x16 slot, running at x16
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
(The PCI Express x16 slot conforms to PCI Express 4.0 standard.) 1 x PCI Express x1 slot
(The PCI Express x1 slot conforms to PCI Express 3.0 standard.)