Build-in detection chip inside, which will detect and classify PD before powering it (Active PoE), Protection of non-standard devices ^^ complies to IEEE 802.3 af/at/bt, PoE++ standard ^^ Support transmission rate of 10/100/1000Mbps (Gigabit), protect output against over voltage, over current, short circuit. Low power devices receive only the power they need ^^ Connect with normal switch to exchange data, provide sustained and stable power through Cat5e/Cat6 cable to remote PD, effective distance is 300ft ^^ Manufacturer supply directly with two-year warranty and unlimited technical support, Wall mounted with mounting hole or placed on desk