Amazon.com: 4G VPN Router, Industrial Dual Sim 4G LTE WiFi Router 3G/4G Yeacomm YF325 Wireless Modem Router Unlocked with Sim Card Slot, External Antenna Cellular Modem in North/South America, NOT for Verizon :
Amazon.com: 4G LTE Router with SIM Card Slot 300Mbps Unlocked Wireless Mobile WiFi Hotspot Routers with 4pcs Non-Detachable Antennas for B2/B4/B5/B12/B13/B17/B18/B25/B26[Not for Verizon] : Electronics
Amazon.com: KuWFi 4G LTE Router with SIM Card Slot, Unlocked 4G WiFi Router with External Antennas, Industrial Wireless CPE Internet Routers for Home/Office, Work with AT&T and T-Mobile : Electronics
Douself 4G Router with SIM Card Slot WiFi Hotspot 2.4G 300Mbps+ 750Mbps Max 10 Devices WPS Encryption USB Powered White, Version - Walmart.com
Amazon.com: DO 300Mbps 4G LTE Modem Wi-Fi Wireless Router for RV or Mobile Home with Strong Signal, USB Port and SIM Card Slot with External Antennas for USA/Canada/Mexico SIM Card : Electronics