1. Perfect match, high quality components. Fast startup, loading and file transfer. Low power consumption, quiet, reliable and durable. 2. Durable Material: This product is made of high-quality material, which is durable, has a long service life, and is firm and stable to use. Small and Portable: This product is small and light, does not take up space, and can be easily taken . Meticulous Workmanship: Well-designed, perfect workmanship, durable and long service life. 3. Processor: Core series and NTEL Xeon series processors supporting LGA2011 3rd/4th generation interface; Chipset: NTEL H81/B85 EXPRESS Chipset; CPU slot: LGA 2011-3 4. Memory type: Support DDR3 1066/1333/1600/1866MHZ, Support DDR4 1866/2133/2400/2666MHZ, Memory supports up to 64GB dual-channel DDR4 or up to 64GB dual-channel DDR3 5. Input and output interface: 1XPS/2 interface, 1*COM interface, 4XUSB2.0, 4*USB3.0, 1XRJ45 interface, 1X3 in 1 audio interface (line in/line out/microphone in) Onboard Interface: 1X24PIN ATX standard power interface 1X4PIN ATX standard power interface 3X USB CONNECTOR, CAN SUPPORT 4*USB 2.0 2*USB 3.0 1X front panel audio interface 1X front panel interface 1X speaker interface 1X fan interface 1X LPC-DEBUG debug pin Integrated sound card: Realtek ALC 6-channel HD Audio Codec onboard Provides front panel audio interface Provides front microphone interface Storage interface: 4X SATA3.0 (6GB/s) interface s 1*NVME-M.2 connector Integrated network card: Realtek 100/1000Mbps Onboard LAN Expansion Slot: 1xPCI Express 16x slot 2x PCI Express 1x slot Note: The appearance and color of different batches of products may be different, which does not affect the use. Model: X99 motherboard Applicable type: desktop Motherboard Architecture: MINI ITX Onboard sound card: ALC661 Onboard network card: with onboard network card Graphics card: discrete graphics card color:Black Material:PCB size:19 x 24CM Package Contents: 1 x Motherboard 1 x E5 2609 V3 CPU 1 x DDR4 4G 2133Mhz RAM(Appearance Random And Color Random, Cannot select specified appearance and color) 1 x SATA Cable(Appearance Random And Color Random, Cannot select specified appearance and color) Only 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.