Features: brand new and high quality Perfect match: According to the original model design, perfect replacement installation, high-quality components,Support for for Intel XEON LGA2011-3 All Series DDR4 RECC memory. 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 for time, firm and stable in use. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken away. Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service for time. Specifications: Model:HUANANZHI X99-BD4 V1.1 Motherboard CPU Socket:Support Intele LGA2011-3 Xeon Memory Socket:4 DDR4 Memory Socket Memory Standard:Support Four Channels DDR4 2400/2133/1866 MHz Maximum Memory Capacity 4x32G SATA:4xSATA3.0 Interface; 2xSATA2.0 Interface Extended interface:IO: 2x USB3.0, 6xUSB2.0, 1xGigabit Ethernet Card, 3x3.5MMAudio interface;Expansion pin: 1x9pin USB2.0; 1x19pin USB3.0; 1xFront audio output pin Expansion Slots:2xPCI Express3.0x16, 1xPCI Express2.0X1, 1xPCI Express3.0x4, 1xM.2 NVME (X 43.0) , 1xM.2 NGFF(SATA3.0) Soud Track:ALC662 5.1 Sound Track Network Interface:RTL8111G Gigabit Ethernet Card Power interface:24pin+8pin Fan interface:4 PCB layer:10 layer, 6Phases Dimension:approx. 283x215mm/11.14x8.46in ATX Note: 1The platform needs powerful power. Please make sure your power supply is sufficient to support it(at least 500w power supply) . 2Please allow 1-3mm differs due to manual measurement. 3Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Package includes: 1PC x Motherboard