1. X99 motherboard uses H81 chip, LGA2011-3 slot CPU, DDR4 memory slot, rear 2 USB3.0/100 Gigabit network cards, enhanced front and rear 2+2 USB3.0 interface design, high-speed connection to 100M Network card or Gigabit network card, dual indicator design, stable and fast 2. DDR4 dual-channel memory, support ordinary memory and ECC server memory, can not be mixed at the same time 3. Modularization, large heat dissipation, power supply design, low temperature and high efficiency, more two-phase sharing, more stable, 6-phase power supply motherboard 4. NVME PCIE X4 channel + SATA dual interface, 2280 theoretical bandwidth up to 4GB/S, support PCIE + SATA channel dual M.2 hard disk interface 5. Easy installation: This product is very easy to install, no additional tools are needed, and the installation process is very convenient. Product name: X99 motherboard kit Chipset: for H81 series CPU socket: LGA2011-3 CPU type: Zhiqiang V3 series and i7 series (support such as 5820K 5960K/E5-2678 V3/E5 2676 V3/E5 2696 V3/E5 2629 V3/E5 2649 V3/E5 2668 V3, etc., the above i7CPU cannot be used with server memory at the same time use) Memory type: DDR4 2666/2400/2133MHz (REG ECC or ordinary desktop memory) Memory slot: 4*DDR4 DIMM Memory capacity: up to 4*32G Expansion slot: 1*PCIE X16 graphics slot 2*PCIE X1 slot 2*USB2.0 slot (1 group) 2*USB3.0 interface (1 group) 2*SATA3.0+2*SATA2.0 interface 2*M.2 PCIE+SATA each 1 NVME high-speed hard disk interface I/O interface: PS/2 interface PS/2 keyboard and mouse universal interface 1*RJ45 network interface 4*USB2.0 interface 2*USB3.0 interface 1*5.1 channel audio interface Other parameters: An 8-pin power socket (when only 4-pin is connected, it depends on the main CPU of the board) A 24-pin power connector 6 power supply modes Product size: 236 x 186mm color:Black Material:PCB Package Contents: 1 x X99 motherboard 1 x E5-2620 V3 CPU 2 x 4G DDR4 RAM Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.