Multi-scenario and Large-scale Application- This router switch is 17.3” x7.7” x1.8”/440mm x 195mm x 45mm and designed for IP monitoring or wireless AP devices in high-forwarding network environments such as schools, market, hospital, campus, hotel, company and so on. 4KV Lightning Protection- 4KV lightning design to protect the product and equipment not be damaged even in bad weather. Sturdy metal housing supports desktop or rack mount in many different usage scenarios. Unmanaged Plug & Play- 20-port network switch supports power detection function, automatic detection of equipment, compatible with non-POE equipment to provide data. Plug and play, just plug in the power cord and connect the Ethernet cable directly to the device without configuration. One-Key VLAN mode- For enhanced security, the 20-port power over ethernet switch features a One Key VLAN mode that isolates the 1-16 ports from each other while still communicating with the uplink ports, improving network security and bandwidth utilization. 20 Ports PoE Internet Switch- Our Ethernet hub includes 16 Gigabit Ethernet ports, 2 Gigabit Uplink Ports and 2 x 10G SFP ports.  Ports 1-16 Compliant IEEE 802.3AT IEEE802.3AF standard etc. 10/100/1000Mbps RJ45 Ports supporting Auto Negotiation and Auto MDI/MDIX.