?Widely Used?Din-rail & Wall mount kit, easy to install, suitable for professional networks such as industrial control, computer room, warehouse, factory, compact control box. ?LED & Fanless?Both the power supply and the port have LED indicators, which can clearly observe the running status of the device. Fanless design, heat sink for heat dissipation, quieter and energy saving during operation. ?Redundant Power?Support 2-way industrial grade power interface input, automatically switchover when 1-way fails without any downtime, high reliability ensures continuous business operation. Include one commercial power supply. ?Industrial IP40?This is a industrial grade switch, using sturdy aluminum alloy cg and industrial grade electronic components, working temperature -40~75°C(-40~185°F), anti-lightning, anti-static and anti-overload protection. ?IEEE802.3af/at PoE?Port 1-4 support IEEE802.3af/at standard, max 30W per port, connect multiple poe devices, such as POE camera/ap, etc. Not support passive 24v poe. His POE input DC voltage is 48-55V, please use a input voltage above 48V to provide POE, if it is 12V, it cannot provide POE. ?5 FE Ports?This din rail switch include 4 ethernet ports and 1 uplink port, all support 10/100Mbps adaptive. Plug and play, directly connected to the peer device, no need to configure the port.