M2M Industrial Cellular 3G 4G LTE Modem Router with Ethernet Vpn Wifi Sim Card Slot Serial rs232 rs485 Port - AliExpress
Amazon.com: NETGEAR 4G LTE Modem – Instant Broadband Connection | Supports Power over Ethernet | works with AT&T and alternate carriers (LB1121) : Electronics
REX 100 LTE 4 x LAN (switch)/1 x LTE modem | Streamline Process Management