Support Verizon, AT&T, Sprint and T-Mobile 2.5G/3G/4G cellular interface including: LTE, GSM/HSPA+, CDMA, and EVDORS-232 or RS-232/422/485 (optional) serial and 2 Ethernet ports switchDual SIM card for cellular network backupHigh-performance architecture, flexible power and extended operating temperature (optional)Flixable with advanced routing protocols, VPN and firewallDevice management solutions with Remote Management software and Device Cloud.