Intel Executive series Single pack. uATX, QPI FSB, Q57 chipset, DDR3-1333, 1 PCIe x16, 2 PCIe x1, 1 PCI 4 SATA, 2 eSATA, 4 DIMM Slots, 1GbE LAN, 6 channel Audio, 6+8 USB 2.0.