Digi TransPORT LR54 Cellular Modem w LTE-A, FIPS 140-2, Power (LR54-AA403)
Industrial Serial to Cellular Modem USR G781 4G/3G Router LTE Modem 2 Port RJ45 Ethernet WAN/LAN free to switch|serial to rj45|serial portserial port switch - AliExpress
Ex15 Ieee 802.11Ac 2 Sim Ethernet, Cellular Modem/Wireless Router 5801244 By Digi - National Furniture Supply
China Industrial Cellular Failover Dual SIM Card Router for Ethernet Modem Camera - China Ethernet Modem Camera and 3G Failover Router Dual SIM Card Router price
4G LTE Modem with Ethernet Port for AT&T Operator Network : Electronics