This SAE-IPE4400F-DFI Industrial Gigabit ethernet PoE switch prepare a field that power and data can be feed from a single point, using Power over Ethernet (PoE) over a single cable. Four Gigabit Ethernet ports supply industry-standard IEEE 802.3af/IEEE 802.3at power for every PoE standard devices. It provides the ideal combination of affordability and capabilities for entry level networking of industrial, enterprise application which demands industrial, surveillance, IP Phone, IP Camera or Wireless applications, thus helps you create a more efficient workforce. Regarding to utilize advanced auto-sensing algorithm the SAE-IPE4400F- gives power only to IEEE802.3af/IEEE 802.3at front-end devices, so don't worry about connecting PoE or non-PoE devices to this feeder. Additionally, this good gives up the power when PoE devices are disconnected. Intelligently, this PoE SAE-IPE4400F-DFI can recognize automatically PoE demands of devices, speed, duplex, and cable type using Auto Uplink™. SAE-IPE4400F-DFI is made with high quality of rigorous screened components, which have superior performance in stability, environmental adaptability. It can work normally in very cold environment to very hot from -40℃to +75℃. The product is planned in a way to have better resistance against corrosion and electromagnetic interference. Power input also made a suitable and reliable types of power, to get more powerful suitability to environment.