Global Cache FL-SL Flex Link serial cable (RS232) for Flex multi-functional IoT gateway. Flex is a tiny device that connects previously unconnected hardware to a Wi-Fi or TCP/IP network so it can be controlled and automated by the controller of your choice. Based on open systems and standards, the Flex allows for easy integration in any control environment, from high-end proprietary systems to apps on a smart phone or tablet. The Flex connects anything IR, serial, or relay (with sensor input) to a network, and supports HTTP for browser control from anywhere in the world. Cables for IR, relay and sensor are also available.