STEAMEMO 5 Port AI PoE Switch (4 POE Ports +1 Uplink), 802.3af/at PoE 100Mbps, 52W Built-in Power, Extend to 250Meter, Unmanaged Metal Plug and Play

4 port PoE + 1 Uplink port or 3 port PoE + 2 Uplink portThe fourth port can be used as a poe port or an uplink port according to your needs.
Active poe switch with 802.3 af/at compliantSTEAMEMO poe switches support poe devices and non-poe devices. But when connecting passive poe device or non-poe device, the switch can only transmit data and cannot power your device, so the connected device needs to be separately powered. Or you can use it with active poe splitter.
4 port poe switch*100M@52W PoE switch with 4 port PoE + 1 Uplink port, 4× PoE ports providing up to 30W per port, total PoE budget 52W, The fourth port can be used as a poe port or an uplink port1 port uplink ideal for connecting NVR and Internet, etc.
4KV Lightning ProtectionSTEAMEMO PoE switch have professional lightning protection design-up 4KV port and power supply thunder prevents, with two levels of protection design respectively, effectively restrain the power of lightning from cable, which equivalent to give the entire network monitoring system with a security fence.
AI Watchdog function of poe portWhen the data or power transmission between the poe port and the terminal device is abnormal, the corresponding poe port of the device will automatically detect the problem and restart the connection.
AI 250 meters Extend functionTurn on the extension switch, it enters the AI mode(POE port will judge whether it enters the ultra-long distance (820ft/10Mbps) mode according to the actual situation). Extend function extending max power and data transmission distance from 100 meters (330ft) to 250 meters (820ft), which is easy to expand network via ethernet cable to somewhere without power supply but need fix device such as IP Cameras.
AI PD DetectionThe poe port will intelligently judge whether the device connected to the port needs power supply. If it is a non-poe device that does not need power supply, the switch will not supply power to these devices and will not damage the device.