[Aluminum Housing]—The Ethernet media converter uses , having 6KV lighting protection and can work at wide range temperature -40°C to 80°C (-40°F to 176°F). [Multiple Functions]—The Ethernet Media Converter supports Auto-negotiation, full Duplex or half Duplex, Auto-negotiation, Complies with IEEE 802.3/802.3u/802.3z/802.3ab. [12~48V DC Power Input]— The media converter supports ~ , which ensures long-term stable operation. [Auto Sensing 100/1000Base-FX]— The open SFP port of fiber media converter supports both . +( ). You can use your device with 100M or 1000M fiber port freely. [IEEE802.3af/at PoE Standard]—The media converter supports . ( . ) and . +( ), meeting the power supply requirements of most devices.