Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 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 protection Programmable 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: PCB colour: Black Package Contents: 1 x POE Module Only 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.