4G LTE Cat4 M2M VPN Router, Wireless N, Dual SIM slots, 2 Ethernet ports with 1 WAN/LAN, 1x micro-SD Slot, Dual external 4G antennas, external Wi-Fi antenna, LTE Band support 1/3/7/8/20/28A/38/40/41 (150Mbps DL, 50Mbps UL), web-based UI/SNMP management/D-ECS Cloud Management, FOTA, supports IPSec, PPTP, L2TP, OpenVPN, GRE tunnels, operating temperature: -30 to 70 ˚C