RLTK421 Industrial 4G/LTE VPN Router is a compact, robust and powerful device specially designed for industrial IoT applications. RLTK421 is equipped with 2x Ethernet (LAN / WAN) and WiFi with hotspot functionality. Multi VPN options like OpenVPN, IPsec, Firewall, Hotspot and remote connection. Provides secure and stable Internet connection for industrial applications with features such as support.