Perfect match: According to the old model design, perfect replacement installation, high-quality components. 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. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken . Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service time. Bundle: Motherboards Chipset: for B250 Storage Interface Type: SATA PCI - E standards: PCI - E 3.0 Motherboard architecture: ATX Support CPU type: LGA1151 Memory: Maximum 16G Memory type: DDR4 Frequency:2133/2400/2800/3000 MHZ Memory slot: 2xDDR4 Expansion slot: 1xPCI-E X16 graphics slot 11xPCI-E X1 graphics slot 2x USB2.0 pins 1x USB3.0 pin 1x COM pin 2x4p square power port 4xSATA3.0 port I/O port: PS/2 port keyboard and mouse universal port 2 1xRJ45 network port 1xDVI High Definition output 2xUSB 3.0 port,4xUSB 2.0 port 1x VGA Note: The appearance and color of different batches of products may be different, which does not affect the use. color:Black Material:PCB size:29.5 x 19cm Package Contents: 1 x Motherboard 1 x G3930 CPU 1 x DDR4 4G 2666Mhz 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) 1 x Switch 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.