Its feature set includes an 8-phase CPU VRM, four DDR3 DIMM slots; two PCI-Express 3.0 x16 slots (x8/x8 with both populated), two PCI-Express 2.0 x1, three legacy PCI, making up the expansion area; storage connectivity that includes six SATA 6 Gb/s, a SATA-Express slot, and an M.2 slot; Intel-made gigabit Ethernet with GameFirst II, and SupremeFX II audio.
Source: TPU