Robustel R1520-4L Industrial Dual-SIM Cellular VPN Router

The Robustel R1520 is a versatile and cost-effective 4G router, tailored for IoT applications. It boasts five Ethernet ports, a rugged design, and a power input range of 9 ~ 36 V DC. The router's Linux-based operating system, RobustOS, is developed entirely in-house, ensuring a high standard of technical support and infrequent firmware updates. It supports dual SIMs and Wi-Fi/Ethernet as WAN options and offers a cellular keep-alive feature and fast failover capabilities. Unique software innovations include RobustVPN, a hosted service providing a fixed IP router, and Sniffer, a built-in tool for running a Wireshark trace directly on the router.