Asus P5B - Manual (Page 43)

ASUS P5B 2-9
2.5.4 PCI slots
The PCI slots support cards such as
a LAN card, SCSI card, USB card,
and other cards that comply with PCI
specifications. The figure shows a LAN
card installed on a PCI slot.
2.5.5 PCI Express x1 slots
This motherboard supports PCI Express
x network cards, SCSI cards and other
cards that comply with the PCI Express
specifications. The following figure
shows a network card installed on the
PCI Express x slot.
2.5.6 PCI Express x16 slot
This motherboard supports PCI Express
x6 graphic cards that comply with the
PCI Express specifications. The figure
shows a graphics card installed on the
PCI Express x6 slot.