Amazon.com: D-Link DWM-311-B1, 4G LTE (Cat 4) to Gigabit Ethernet Modem/Bridge, Best for M2M Applications, Supports OpenVPN, Optional Enterprise Service Platform, Works on Verizon or AT&T : Electronics
ICR-W401-A - Ethernet Industrial LTE/4G router with GPS, hardened -40 to +75 Celsius
Amazon.com: Industrial 4G LTE WiFi Router For T-Mobile and EIOTCLUB SIM Card, Not For Verizon, Cellular VPN Routers Internet Backup, M2M Gateway RS232 Modem, For Vehicle Fleet RV Camera Security System Automation :
IR305 5 Ethernet port Industrial IoT LTE 4G Router with Dual Sim Slot unlocked | eBay
LINOVISION Industrial 5G Cellular Router with Dual 5G SIM Cards and RS232/485 IoT Integration,Gigabit Ethernet, WiFi 5G/4G and GPS | LINOVISION US Store
Industrial 4G LTE WiFi Router with SIM Card Slot, 4G VPN Router, Indusrial Cellular Router | LINOVISION US Store
5G NR & CAT20 LTE Router. Includes GPS/GNSS, 1 x 10/100/1000 Ethernet, USB-C Port, RS232, RS485, GPIO, IP54 enclosure. EU Power Cord
1 Lan Ports 3g 4g Lte Pocket Wifi Router Portable Hotspot With Ethernet Port Power Bank - 3g/4g Routers - AliExpress
Amazon.com: Wiflyer WG3526 4G LTE Router | AC1200Mbps Dual Band CAT4 Wireless Router with Metal Case and Detachable 6×5dBi Antennas| Gigabit Ethernet with TF Card Slot & USB3.0 Port & SIM Card
Source Industrial M2M openwrt ethernet 3g 4g modem lte wireless wifi router with sim card slot on m.alibaba.com
Teltonika RUTX11 4G LTE Router (CAT 6) 4 Ethernet, WIFI, GPS, and Bluetooth