Features: brand new and high quality CPU platform, CPU socket LGA 2011, supports 2 CPUs at the same for time. Dual CPU driver, 7 + 7 phase power supply, large dual heat sink. Integrated chip sound card/network card, main chipset X79, integrated Gigabit network card. Memory type DDR3 1866/1600/1333/1066MHz, memory slot 16 × DDR3 DIMM. X79 chip, all solid state capacitor, dual PCI-E graphics card. Specifications: Item Type: X79 Dual-16D Motherboard Motherboard type: E-ATX Main chip: X79 series Graphics card slot: 3 x PCI-E 3.0 16X , 3 x PCI-E 3.0 8X Expansion slot: for M.2 nvme switchable interface Integrated video card: Yes Power supply: 7 + 7 phase power supply PCBs layers: 12 Ethernet: Gigabit CPU Type: LGA2011x2 (XEON E5 / 2620/2630/2640/2650/2660/2665/2670/2680/2690 C2 and V2) Memory slot: 16 x DDR3 (4 channels) Maximum memory capacity: 32Gx16 DDR3 Memory speed: 1866/1600/1333/1066 Compatible memory type: No ecc / reg ecc / ecc. USB interface: USB x 4 USB x 8 (includes expansion) Audio Port: ALC662 5.1ch Size: Approx. 305x330mm/12.01x12.99in Package Includes: 1x X79 16D Dual CPU motherboard note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.