Desktop PC Motherboard 2011 Pin Computer Accessory Dual USB3.0 Interface for M.2 E5-2680v2 I7 Item Type Motherboard Model X79 Motherboard Chip Integrated chip sound card / network card Main chipset for Intel X79 Network card chip integrated RTL8111F / H Gigabit network card Audio chip integrated 6-channel audio chip Processor Pattern CPU Platform: For Intel CPU Socket: LGA 2011 Support: 1 CPU Memory Pattern Memory Type: DDR3 1866/1600 / 1333MHz Memory Slot: 4 × DDR3 DIMM Expansion Slot PCI-E slot 2 × PCI-E X16 graphics slot 1 × PCI-E X1 slot 2x USB3.0 pins (1 group) 6x USB2.0 pins (3 groups) 1 × M.2 high-speed hard disk interface 1x COM interface 4 x SATA2.0 interface 2 x SATA3.0 interface 1x PCI interface I / O Interface PS / 2 interface PS / 2 keyboard and mouse universal interface 1 × RJ45 network interface (Gigabit network card) 2 x USB 3.0 interface 6 x USB 2.0 interface Audio port Motherboard size Approx. 28.4 x 22cm / 11.18 x 8.66in Net Weight (without box) Approx. 0.72 kg / 1.6 lb Gross Weight 0.98 kg Other Parameters An 8-pin power socket and a 24-pin power interface Power Supply Mode: 8 phase Battery Model CR2023 ( Not included.)