[Aluminum Housing]—The Ethernet media converter uses industrial IP40 aluminum housing, having 6KV lighting protection and can work at wide range temperature -40°C to 80°C (-40°F to 176°F). [Good Quality]—The PoE++ Ethernet media converter supports Auto-negotiation, full Duplex or half Duplex, Auto-negotiation, Complies with IEEE 802.3/802.3u/802.3z/802.3ab. [48~57V DC Power Input]— The media converter supports 48~57V dual backup voltage DC input and only need one group of power supply to be connected to work. [Auto Sensing 100/1000Base-FX]— The open SFP port of fiber media converter supports both 155Mbps and 1.25G SFP module. You can use your device with 100M or 1000M fiber port freely. [IEEE802.3af/at/bt PoE Standard]—The Industrial PoE++ Media Converter complies with IEEE802.3af/at/bt standard, and it can automatically detect the powered supply.