100% brand new and high quality Features: Innovative design, convert PCIE 1x directly to USB3.0 interface, reduce intermediate transmission links, reduce costs, reduce signal attenuation, and make continuous long-term work more stable. Upgrade to compatible HDMI-compatible high-definition display interface, convenient and practical. Support for Core 6th and 7th generation CPUs, LGA1151 is easy to use, low cost, low investment, and efficient mining. This product uses high-quality materials, is durable, has a long service life, and is firm and stable in use. Expansion of 12 USB3.0 ports, plug and play, convenient and trouble-free. Specifications: Motherboard chip:Integrated chip network card Main chipset: for B250 The network card chip: integrates RTL8105e and other fast network cards Audio chip: without sound card CPU Platform: For Core 6th Generation / Pentium / Celeron CPU socket: LGA 1151 Supports amount of CPU: 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 forks 1 pin USB3.0 1x COM pin 2x4p square power interface 4xSATA3.0 interface I / O interface: PS / 2 keyboard and mouse interface universal interface 2 1xRJ45 network interface 1 High Definition xDVI output 2 x usb 3.0 interface 4xusb 2.0 interface 1 x VGA Audio Port Size: approx. 29.5x19cm/11.61x7.48in Material: PCB Color: black Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm. The appearance and color of the product will be different in different batches, which will not affect the use The colors of the SATA cables and switch cables are random and cannot be specified. Package Includes: 1 x Motherboard 1 x Sata cable 1 x Switch Cable