Feature:1. Loaded with M.2 hard disk port,support high speed of PCI-E NVME X4.It is the best choice of operation system or application driver.2. With 4 channels DDR3*8,improve the capacity and performance largely,support 256GB.3. Equipped with digital diagnostic card,hardware devices will be tested automatically to ensure the operation of the devices.4. Support 3 PCIE expanded slots,these channels can be synthesized to X16/X8 configuration to cope with multiple workloads.5. It is made of 10 layers PCB and high quality capacitors,stable and heat-resistant.6. With 8 SATA3.0 ports for acquiring the best reading speed,fast transmitting without waiting.Specification:Features:Loaded with M.2 hard disk port,support high speed of PCI-E NVME X4.It is the best choice of operation system or application driver.With 4 channels DDR3*8,improve the capacity and performance largely,support 256GB.Equipped with digital diagnostic card,hardware devices will be tested automatically to ensure the operation of the devices.Support 3 PCIE expanded slots,these channels can be synthesized to X16/X8 configuration to cope with multiple workloads.It is made of 10 layers PCB and high quality capacitors,stable and heat-resistant.With 8 SATA3.0 ports for acquiring the best reading speed,fast transmitting without waiting.Specification:Model: X99-8D3Form Factor: ATXGraphic Slot: PCIE3.0 16X*3Network Card: Gigabit Network CardAudio Channel: 7.1 ChannelCPU Type: LGA2011 2629V3/2649V3/2669V3/2678V3/2696V3/2676V3/2673V3PCB: 10 LayersMemory Slot: DDR3*8Capacity: 256GBSATA Interface: SATA3.0*8 M.2 NVMEPS/2 Interface: mouse/keyboardPower Supply: 8 PIN*1 24 PIN*1USB Interface: USB3.0*6 USB2.0*6Expanded Interface: PCIE 1X*2 M.2 WIFI*1Item Size: 30.2*24.4cm/11.89*9.61inItem Weight: 930.5g/32.82ozPackage Size: 35*29*6.8cm/13.78*11.42*2.68inPackage Weight: 1387g/48.92ozPacking List:1*Motherboard1*SATA Cable1*Baffle1*CPU Fan BoardA bag of screwsPackage List:1*Motherboard1*SATA Cable1*Baffle1*CPU Fan BoardA bag of screws