PCI Express x16: 1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the PCI Express x1 slots. The PCI Express x1 slots will become unavailable when a PCIe x4 expansion card is installed.
* When installing a x8 or above card in the PCIEX4 slot, make sure to set PCIE Slot Configuration (PCH) in BIOS Setup to x4.
Memory Standard: DDR5 6400+(OC)*
* Supports DDR5 4400 (1DPC) / 3600 (2DPC) natively.
* Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)