Processor: Supports all processors of the LGA1151 seriesChipset: using for Intel B250 high-speed chipsetMemory: 2*DDR4 DIMM memory slot, support 2133/2400MHZ memory, maximum support 16GBDisplay chip: integrated for Intel HD Graphics coreDisplay output: HDMI-compatible/12*USB3.0 to PCI-E16XStorage: 4*SATA hard disk interface,1*MSATA interfaceI/O interface: 2*USB3.0 interface; 2*USB2.0 interface; 1*HDMI-compatible interface; 1*PS/2 interface,1*VGA interfaceBuilt-in I/O interface: 1*USB2.0 pin; 1*COM pin; 1*F-PANEL front panel function button and indicator plug NeedleBIOS: AMI 64mb Flash ROMPower supply type: support ATX24P+ATX4P, 12V+ATX6PThe appearance and color of different batches of products may be different, which will not affect the usePs:1. N card: refers to the graphics card product developed by for NVIDIA 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)Note: multiple color, don't accept the specified color.size: 230 x 185mmMaterial: PCBcolour: blackPackage Contents:1 x Motherboard1 x Cooling fan(multiple color and appearance)1 x CPU1 x 128G MSATA SSD (multiple color and appearance)1 x DDR4 4GB 2666MHZ RAM (multiple color and appearance)1 x Switch Cable (multiple color)Only the above package content, other products are not included.Note: Light shooting 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.About UsWe provide the good product with the best price,we support Wholesale/Drop Shipping Order1. For Drop Shipping order, please remark"dropshipping order", we will prioritize it.2. For Wholesale/Drop Shipping orders, if you have any ideas about the price or package,please contact us in advance,we will give you the best service to satisfy your demands.About Shipments1.We will send out the orders ASAP once your payment is completed normally.2.Please write your complete delivery address with correct phone number and zip code, especially please confirm your full name.About After-sale ServiceWe are reliable seller and we have our professional after-sale service for all of our customs. If there is any question about the order,please contact us in advance ,we will always here until you get a happy answer.About Feedback1. Please check the package and item when you get carefully to make sure there is no problem.2. If you have any problem or are not entirely satisfied with your package,please don’t be hesitate to contact us first before leaving negative feedback. We will resolve the problem to satisfy you.24378. If there is no problem, please leave us five star positive feedback.Your affirmation is our greatest motivation ! !