ASUS Crosshair II Formula 2-21
2.5.4 PCI slots
The PCI slots support cards such as a LAN card, SCSI card, USB card, and other
of the slots.
2.5.5 PCI Express x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards and other
the location of the slots.
• Install the audio card prior to other compatible cards to the black PCIe x1
slot.
• Install a PCIe x1 device to a PCIe x1 slot prior to a PCIe x16 slot.
2.5.6 PCI Express x16 slots
This motherboard has three PCI Express x16 slots that support PCI Express x16
cards installed, the motherboard can enable multi-display. All of the three PCI
Express x16 slots support PCIe 2.0 devices.
This motherboard supports 3 SLI-ready Express x16 graphics cards that comply
PCI Express x 1 slot
PCI slot
PCI Express x 16 slot
PCI slot
PCI Express x16 slot
Audio/PCI Express x1 slot
PCI Express x 16 slot