Quick start, loading and file transfer. Low power consumption, quiet, reliable and durable.Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use.Expansion of 12 USB3.0 ports, plug and play, convenient and trouble-freeUSB3.0 interface: Instantly experience data transfer speed 10 times faster than USB2.0 through plug and play function.Support for Core 6th and 7th generation CPUs, LGA1151 is easy to use, low cost, low investment, and efficient miningStorage: 4 x SATA hard disk interface,1 x MSATA interfaceI/O interface: 2 x USB3.0 interface; 2 x USB2.0 interface; 1 x HDMI-compatible interface; 1 x PS/2 interface,1 x VGA interfaceBuilt-in I/O interface: 1 x USB2.0 pin; 1 x COM pin; 1 x F-PANEL front panel function button and indicator plug NeedleBIOS: AMI 64mb Flash ROMPower supply type: support ATX24P+ATX4P, 12V+ATX6PNote:(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 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)Colour:blackMaterial: PCBSize:230x185mmPackage Contents:1 x Motherboard1 x G3900 CPU1 x DDR4 8GB 2133mhz RAM (the appearance and color are random, don't accept the specified )1 x SATA Cable (the appearance and color are random, don't accept the specified )1 x Switch Cable (random colors, don't accept the specified color)1 x 4PIN To SATA Cable (random colors, don't accept the specified color) 1 x Thermal Pad (random colors, don't accept the specified color) 1 x SSD 128GOnly 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.