✓?Wide Applications? Built-in power supply. Durable Metal. Industrial fan. LED activity indicator lights. Can be widely used in security monitoring, computer networks, wireless coverage, office and home networks, etc. Any questions please contact our official support, we will provide the best after-sales service. ✓?VLAN Function? The PoE ports 1-16 support VLAN isolation, the traffic are isolated from each other, can only communicate with the uplink 18-19 to reduce network congestion, improve the network performance. ✓?Plug and Play? The PoE ports support automatic detection, can connect POE and non-POE devices, such as PoE Cameras, APs, computer, nvr, router and so on. Plug and Play, no configuration required, easy to use. ✓?250W High Power? Support IEEE802.3af/at PoE standard protocal. The whole power is 250W, up to 30W per port. POE power supply is more sufficient and stable, suitable for connect multiple devices. ✓?All Gigabit Ports? This 18 ports ethernet switch includes 16 Gigabit PoE/PoE+ ports, 2 Gigabit UpLink, all ports up to 1000Mbps speed, has excellent network performance.