?Matters Needing Attention?- Once the power is supplied, there is no detection step, regardless of whether the terminal is PoE powered devices are powered, it is very easy to burn the access equipment. So you need to know your equipment. ?Din-Rail & Wall Mount?- The gigabit PoE injector comes with 35mm Din-rail clip and wall mount accessories. You have more choices to install it. ?3.74x2.76x1.18in Small Size?- The 24V PoE injector has compact design and need small space to install. Plug and play, convenient to operate. ?Industrial Grade Quality?- The PoE adapter uses industrial grade components and aluminum housing. -40? to 80? operating temperature and you can use it in outdoor harsh environment. ?12~24V DC Input?- The passive PoE injector supports 12~24V DC input and boost to 24V PoE output. It will solve the problem that you only have 12V centralized power supply.