Motherboard chip: integrated sound card/network card Main Chipset: For H81 series Audio chip: integrated 5.1 channel sound chip Network card chip: integrated 100M/Gigabit network card (random model, 't accept the specified) Processor Specifications: CPU socket: LGA2011-3 CPU Type: For Xeon 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 i7 CPU cannot be used with server memory at the same time) Memory Specifications: Memory Type: Support DDR4 2666/2400/2133MHz (REG ECC or normal desktop memory) Memory slot: 4xDDR4 DIMM Memory capacity up to 4*32G Expansion Slots: 1XPCIE X16 graphics card slot 2XPCIE X1 graphics card slot 2XUSB 2.0 slot (1 set) 2XUSB 3.0 interface (1 group) 2xSATA3.0+2XSATA2.0 interface 2xM.2 PCIE+SATA each with 1 NVME high-speed interface I/O interface: PS/2 interface: PS/2 keyboard and mouse general interface 1XRJ45 network interface 4XUSB2.0 interface 2XUSB3.0 interface 5.1 channel audio interface Other parameters: Power socket: 1*8 pins (when only 4 pins are connected to the main CPU on the board) 1*24 pin power connector Power supply mode 6 items Different batches, product appearance and color may be different, does not affect the use Colour:black Material:PCB Size:236 x 186mm Package Contents: 1 x Motherboard 1 x Switch Cable(the appearance and color are random, 't accept the specified ) 1 x Baffle(the appearance and color are random, 't accept the specified ) 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.