D-Link Enterprise smart gateway, 19-inch rack steel shell design, provides 5 Gigabit ports, WAN/LAN switching, supports Internet behavior management, supports well-known APP management and control, supports application-based intelligent flow control, VPN, and supports docking smart cloud platforms, Support unified management of i, SMS authentication, etc., support advertising marketing promotion, passenger flow statistics analysis, support WeChat management, recommended access bandwidth 380Mbps, with 300 units, and can manage 128 smart wireless APs;