1、12 PCIe Slots: This B250B motherboard has 12 x PCIe slots that can be connected to several graphics card, faster mining speed. 2、VGA DVI Output: This DDR4 motherboard supports VGA and DVI output that ensures easy connection with monitor. 3、Widely Compatible: This PC motherboard supports graphics cards of series 30, series 20, series 16, series 10, series RX and type P(Support LHR GPU). 4、DDR4 Memory Slot: This desktop motherboard with B250 chip and gigabit network card supports CPU of 6th and 7th generation, adopts DDR4 memory slots. 5、High Speed: This mining motherboard is designed with G3900 LGA1151 2.8ghz CPU, maximize your mining connectivity and speed. Item Type: B250B Motherboard Material: Printed Circuit Board Motherboard Chip: Integrated Chip: Sound Card, Network Card, Integrated Graphics Card Chipset: B250 Series Network Card Chip: Gigabit Network Card Audio: Integrated Audio Chip CPU Specification: CPU Platform: For Core 6th and 7th Generation, for Pentium, for Celeron CPU Slot: LGA 1151 Supported CPU Quantity: 1 (G3900 CPU Included) Memory Specifications: Memory Type: DDR4  2133/2400/2666MHZ, Maximum 32G Memory Slot: 2 x DDR4 Extension Slot: 1 x PCIe X16 GPU Slot, 11 x PCIe X1 Slot, 2 Groups of USB2.0 Pin, 1 Group of USB3.0 Pin, 1 x COM Pin, 4 x SATA Interface I/O Interface: PS/2 Interface, 2 x Keyboard Mouse Universal Interface, 1 x RJ45 Network Interface, 1 x DVI, 2 x USB 3.0, 2 x USB 2.0, 1 x VGA, Audio Interface Battery Type: Lithium Manganese Battery Battery Model: CR2032 Battery Capacity: 140mAh (Battery Included) 1 x B250B Motherboard 1 x SATA Cable