1pc X79 Motherboard. 1 PCI-E 16X 3.0. 1 PCI-E 16X. 4 DDR3 RAM Slot, Support Quad Architecture. Expansion Slots1 PCIE 1X Slot, 1 PCIE 4X Slot, 1 PCIE 16X 3.0 Slot. Number of PCIe x 161. Number of PCIe x 41.
eBay