The IG-902 is a powerful IIOT Gateway used in Edge Computing, to reduce cloud-end computing resources, and realize data optimization, real-time response, agile connection and model analysis on the IoT edge, further advancing the development of digital networking in the AI era. The IG-902 is a certified Microsoft Azure IoT Device. The IG-902 offers multiple Internet access methods: fast Ethernet, ADSL, Wi-Fi, and global 3G/LTE Cat4/LTE Cat1 networks. With support of dual-SIM, redundant link backup, and VRRP hot standby, the gateway ensures continuous connection by seamless transition to a backup link when main link fails; Embedded multi-layer link detection and recovery mechanism ensures the remote devices are highly reliably and continuously connected. The IG-902 IIOT Gateway hardware consists of an ARM Cortex-A8 processor, 1GHz main frequency, up to 1GB DDR3 RAM and 8GB eMMC FLASH give the gateway powerful edge computing capabilities to perform data optimization, real-time response, agile connection, smart applications, security and privacy protection at the IoT edge, and effectively reduce the workload of cloud-end computing.