CPU: Tianrui D2000/Oct-core processor, main frequency 2.3GHz, optional Feiteng2000/Quad-core main frequency 2.6GHz Memory: 2 DDR4 2666MHz SODIMM, support 2GB Display: 1 DVI, 1 VGA Storage: 1 SATA3.0, 1 M.2 SATA protocol, 1.2 NVMe protocol Network: 2 adaptive gigabit network ports Expansion: 1 PCleX16 slot COM: 4 RS22 (internally led out) USB: 16 USB [8 USB3.0, 6 USB2.0, 2 USB2.0 (ally led out)], plus 2 USB2.0 (optional internal lead-out) Front panel 1/O 4 COMO, 2 USB2.0 1 power indicator light, 1 hard disk indicator light Rear panel I/O 2 audio ports, 8 USB3.0, 6 USB.0, 1 DVI, 1 VGA, 2 RJ45 Audio: 2 audio ports Power: 250W rated powerCase size: 290.1*291*104.2mm (width*depth*height) Overall weight: about 45KG System support: Support for operating systems such as Galaxy Kylin, UOS, etc. Working temperature: 0~50°C, storage temperature40°C ~ 85°C