Motherboard chip:Integrated chip network card Main chipset: For B250 Network card chip integrates RTL8105e and other fast network cards Audio chip: no sound card Processor specifications: CPU platform: For Core 6th Generation/Pentium/Celeron CPU socket: LGA 1151 Support CPU quantity: 1 (not included) Memory specifications: Memory type: DDR4 2133/2400/2800/3000 MHZ up to 16G Memory slot: 2xDDR4 Expansion slot: 1xPCI-E X16 graphics slot 11xPCI-E X1 graphics slot 2x USB2.0 pins 1x USB3.0 pin 1x COM pin 2x4p square power interface 4xSATA3.0 interface I/O interface: PS/2 interface keyboard and mouse universal interface 2 1xRJ45 network interface 1xDVI HD output 2xUSB 3.0 interface 4xUSB 2.0 interface 1xVGA Colour:black Material:PCB Size:29.5 x 19cm Package Contents: 1 * Motherboard 1 * CPU Cooling Fan (not include CPU,The appearance of the batch ) 1 * SATA Cable (random color and appearance,Not accept designation) The appearance of different batches of products may be different, which will not affect the use 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.