【Poe switch with 802.3af/at compliant】16-Ports 10/100 switch with 4 PoE ports and 2 Uplink Ethernet, providing up to 30W per port and total PoE power budget of 300W. The 2 uplink ports can be connected to different networks or devices, such as routers, NVRs | 【Unmanaged Plug and Play】Easy setup with no software installation or configuration needed,support power detection function, automatically detect devices, will not burned non-stantard PoE device or standard PoE switch | 【Sturdy and Quiet】Engineered for compact convenience, it durable metal case that is easily positioned on your desktop or a wall. The fan-less design quietly integrates with your office environment and featured with good heat dissipation，safe to use in different environments from temperature -20 to 50℃ | 【Extend and VLAN Function】Up to 250m data and power PoE transmission range under Extend Mode, ideal for surveillance system (Speed will be reduced if extend function is operating).Port-Based VLAN When you enable VLAN mode,the PoE port is isolated with each other,but communcate with uplink ports,improve network performance. | 【Widely Used】: Built-in Industrial Power Supply. Durable Metal housing. LED indicator lights. Widely used in IP cameras, Wireless Access Point, Computer Networks devices, etc.