-4xIntel i225-V B3 2.5G RJ45 LANs, 2xUSB3.0, 2xUSB2.0, 1xRJ45 COM console. -2xDDR4 SODIMM non-ecc ram slot, max support 32GB. -Support two storage: 1xM.2 2280 NVMe/PCIE3.0x2 SSD+1x2.5''SATA SSD/HDD. -1xHD-MI2.0 and 1xDP1.4 support dual 4K@60Hz UHD video display. -1xSIM slot, 1xMPCIE wireless slot, support WiFi/3G/4G(3 choose 1) connection. -Support AES-NI, ESXI, PVE, Watchdog, Auto power on, RTC, PXE boot, Wake-on-LAN etc. -Full Aluminum Alloy solid-built shell with three-sided ice thorns, excellent cooling performance. -Fanless system without cooling fan, work as long as 7x24 hours. -Low consumption TDP and can be mounted back of monitor by VESA bracket(optional).