D-Link 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 (DWM-311-B1)
IoT Router / Gateway PRO4 for Industrial Use - WM Systems LLC - M2M / IoT Communication Solutions
DWM-312 4G LTE M2M Router | D-Link
M2M LTE CAT.4 ROUTER - WM Systems LLC - M2M / IoT Communication Solutions
PePel H685 4G LTE M2M Router Industrial Grade 4G Router with LAN and WAN Ethernet and N Wireless|router slot cutting bit|router 3grouter booster - AliExpress
Cisco 819 4G LTE M2M Gateway Integrated Service Routers Data Sheet - Cisco
DWM-312W 4G Cat. 4 M2M CPE | D-Link
Lancom IAP-321-3G + WLAN (Router M2m)
M2M LTE CAT.4 ROUTER - WM Systems LLC - M2M / IoT Communication Solutions