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 statistical analysis, support WeChat management, recommended access bandwidth 400Mbps, with 320 units, can manage 256 Intent-Driven wireless APs;