Asus P5E64 WS 2.5.4PCI slots, 2.5.5PCI Express x4 slot, 2.5.6PCI Express 2.0 x16 slots (blue), 2.5.7Universal PCI Express x16 slots (black)

2.5.4PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. Refer to the figure below for the location of the slot.

2.5.5PCI Express x4 slot

This motherboard supports PCI Express x4 and PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. Refer to the figure below for the location of the slot.

2.5.6PCI Express 2.0 x16 slots (blue)

This motherboard has two PCI Express 2.0 x16 slots that support two ATI CrossFire™ PCI Express 2.0 x16 graphics cards complying with the PCI Express specifications. Refer to the figure below for the location of the slots.

2.5.7Universal PCI Express x16 slots (black)

This motherboard also supports two Universal PCI Express x16 slots with a maximum speed of x4 or x1 link. The operating frequency of these slots change depending on the type of PCI Express card you install. Refer to the figure below for the location of the slots.

Universal PCIe x16_4 slot (black, @ x4 or x1) PCI_2 slot

PCIe 2.0 x16_3 slot (blue, @ x16) PCI_1 slot

Universal PCIe x16_2 slot (black, @ x4 or x1) PCIe 2.0 x16_1 slot (blue, @ x16)

PCI Express x4_1 slot

ASUS P5E64 WS Evolution 2-21