IEEE802.3af compliant. Support PoE applications in both of Fast / Gigabit Ethernet environments.Support wide input voltage range 37Vdc to 57Vdc.Thermal cut off. Short circuit protection. Over current protectionProgrammable Classification (Default: 0). High DC/DC converting efficiency.Less external component one output decoupling capacitor. Isolation level 1.5KVrms.Enhanced surge protection. Internal in 2 channel bridge rectifiers.Material: PCBcolour: BlackPackage Contents:1 x POE ModuleOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.