ASUS SSI CEB DDR3 2400 LGA 2011 Motherboard P9X79-E WS Intel LGA 2011 platform/Intel X79 chipset Quad Channel-8 DIMM Best Graphics Performance with 4-Way GeForce SLI and CrossFireX x16 links Intelligent PSU Detection with ASUS Dr.Power Better networking with new dual server-grade Intel I210 Ethernet High speed storage and data transfers with ASUS SSD Caching II CPU: LGA2011 Memory: 8x DDR3-2400(OC)/2133(OC)/1866/1600/1333/1066 DIMM Slots, Quad Channel, ECC/Non-ECC, Un-buffered, Max Capacity of 64GB Slots: 7x PCI-Express 3.0/2.0 x16 Slots (three run at x8) SATA: 6x SATA3 Ports, Two Support Raid 0, 1, 5, 10, Four Support Raid 0, 1, 10; 4x SATA2 Ports, Support Raid 0, 1, 5, 10; 2x eSATA3 Ports LAN: 2x Intel I210 Gigabit Ethernet Controllers Ports: 4x USB 3.0/2.0 Ports (2 rear, 2 at mid-board), 13x USB 2.0 Ports (10 rear, 3 at mid-board), 1x PS/2 Keyboard/Mouse Combo Port, 2x eSATA3 Ports, 2x RJ45 LAN Ports, 1x Optical S/PDIF Out, Audio I/O Jacks Power Connector: 1x 24pin EATX Main Power Connector, 1x 8pin EATX 12V Power Connector, 1x 6pin EATX 12V Power Connector