Processor: Supports all processors of the LGA1151 series; Chipset: using for B250 high-speed chipset; Memory: 2*DDR4 DIMM memory slot, support 2133/2400/2666Mhz memory, maximum support 16GB Display chip: integrated for HD Graphics core; Display output: -compatible/12*USB3.0 to PCI-E16X; Storage: 4*SATA interface,1*MSATA interface I/O interface: 2*USB3.0 interface, 2*USB2.0 interface, 1*-compatible interface, 1*PS/2 interface,1*VGA interface; Built-in I/O interface: 1*USB2.0 pin, 1* pin, 1*F-PANEL front panel function button and indicator plug Needle BIOS: 64mb Flash ROM; Power supply type: support ATX24P+ATX4P, 12V+ATX6P The appearance and color of different batches of products may be different, which will not affect the use Ps: 1. N card: refers to the graphics card product developed by for company. 2. A card: refers to the graphics card product developed by for AMD company. Note: since the windows driver can only support 8 cards at most, the mining combination of 12 cards is generally (6N + 6A (8N + 4A, 8A + 4N) (7N + 5A, 7A + 5N) Model Number:B250C Model Number:BTC Mining Motherboard Model Number:ETH Mining Motherboard color:Black Material:PCB size:230 x 185mm Package Contents: 1 x Motherboard 1 x G3900 CPU 8 x VER009S Riser Card(Random colors and random appearances, Cannot select specified color and appearance) 2 x 4GB DDR4 RAM(Random frequency 2133/2400/2666Mhz,Cannot select specified frequency, Random colors and random appearances, Cannot select specified color and appearance) 1 x Fan(Random colors and random appearances, Cannot select specified color and appearance) 1 x SATA Cable(Random colors and random appearances, Cannot select specified color and appearance) 1 x Switch Cable(Random colors andrandom appearances, Cannot select specified color and appearance) 1 x Baffle(Random colors and random appearances, Cannot select specified color and appearance) 1 x Thermal Grease(Random colors and random appearances, Cannot select specified color and appearance) 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.