1. Perfect match: According to the original model design, perfect replacement installation, high-quality components.2. Quick start, loading and file transfer. Low power consumption, quiet, reliable and durable.3. Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use.4. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken .5. Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service time.Product name: computer motherboardMotherboard chip: B250 chipProcessor specifications: CPU platform for Intel Core 6th generation/Pentium/Celeron CPU socket LGA 1151, support 1 CPUMemory specifications: memory type DDR4 2133/2400/2800/3000 MHZ up to 16GMemory, slot 2xDDR4Expansion slot:1xPCI-E X16 graphics slot11xPCI-E X1 graphics slot2x USB2.0 pins1x USB3.0 pin1x COM pin2x4p square power interface4xSATA3.0 interfaceI/O interface:PS/2 interface keyboard and mouse universal interface 21xRJ45 network interface1xDVI HD output2xUSB 3.0 interface 4xUSB 2.0 interface1xVGAOther parameters: a 4-pin power jack and a 24-pin power connectorPower supply mode: 3 phases, 2 CPU fan socketsProduct size: 29.5x19cmCPU:Model: G3900CPU series: for Celeron dual-coreManufacturing process :14 nmSlot type: LGA 1151CPU frequency: 2.8 GHzNumber of cores: Dual coresNumber of threads: Dual threadsLevel 3 cache: 2 MBBus specification :DMI3 8GT/sThermal design power consumption (TDP):51WMaximum memory: 64GBDDR4 1866/2133mhz, DDR3L 1333/1600mhz @1.35VMaximum number of memory channels: 2Material:PCB+Metalcolour:BlackPackage Contents:1 x B250B motherboard1 x G3900 CPU2 x 8G DDR4 RAM1 x cooling fan1 x switch cable1 x SATA cableOnly the above package content, other products are not included.Note: Light 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.