GIGABYTE GA-X79-UD5 LGA 2011 Intel X79 SATA 6Gb/s USB 3.0 E-ATX Motherboard CPU: Support for an Intel Core i7 series processor in the LGA2011 package. Chipset: Intel X79 Chipset. Memory: 8 x 1.5V DDR3 DIMM sockets supporting up to 24 GB of system memory. 4 channel memory architecture. Support for DDR3 2400/1866/1600 MHz memory modules Audio: Realtek ALC898 codec. High Definition Audio. 2/4/5.1/7.1-channel. Support for Dolby Home Theater. Support for S/PDIF In/Out. LAN: Intel 82579V. 2 x 1394 Expansion Slots: 3 x PCI Express x16 slots (x16 x16 X8). 2 x PCI Express x1 slots, 1 x PCI slots. Support for 3-Way/2-Way SLI, 3-Way/2-Way CrossFireX technology. Storage Interface: 6 x SATA 6Gb/s. 4 x SATA 3Gb/s. 2 x eSATA 3Gb/s; Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10. 4 x USB 3.0, 14 x USB 2.0