MSI Eclipse SLI Core i7/Intel X58/6DDR3-1600/CrossFireX/3-Way SLI/2GbE/R/A/1394/ATX Motherboard CPU Socket Type LGA 1366 Number of Memory Slots 6x240pin (support for DDR3) Expansion Slots 2 x PCI Express 2.0 x16,1x PCI Express x1,PCI Slots 2 Audio Channels 8 Channels Creative X-Fi Xtreme Audio with Onboard LAN Dual GB LAN