The 4G LTE router TK812L is a machine-to-machine (M2M) industrial cellular router with Din-rail mounting, which works on 2G, 3G and 4G cellular networks, provides reliable and robust wireless connections. The 4G LTE router has two Ethernet ports and two SMA(f) cellular antenna connectors. The 4G LTE router also supports the OpenVPN and IPSec providing high-grade network security as well as a integrated Firewall.

The VPN LTE router is designed to endure extreme conditions, such as temperatures ranging from -25 °C - +70 °C and low power consumption.