The Wilson 460079 IoT 3.0 Direct-Connect Cellular Signal Booster for IoT Devices and Modems is a compact "direct-connect" cellular amplifier that wires straight into a cellular modem or IoT device rather than broadcasting over the air, boosting uplink and downlink signal for equipment such as ATMs, kiosks, security panels, and remote data modems installed in weak-signal locations. Like other members of WilsonPro's direct-connect IoT line, it's FCC-certified and built to work across major U.S. carrier networks.