Yeacomm LTE Industrial 4G Cellular Router Specific Feature: Support multiple WAN access methods, including static IP, DHCP, PPPOE,3G/UMTS/4G/LTE, DHCP-4G. Supports UPnP, Dynamic DNS, Static Routing, VPN (PPTP, L2TP, IPSEC, GRE. Supports WIFI, Compatible with 802.11b/g/n, AP and Client Mode Yeacomm Dual SIM 4G Modem supports RS232 serial port (or RS485 optional), Ethernet port and WIFI that can conveniently and transparently connect one device to a cellular network, allowing you to connect to your existing serial, Ethernet and WIFI devices with only basic configuration