Build-in detection chip inside,which will detect and classify PD before powering it(Active PoE),Protection of non-standard devices complies to IEEE802.3af/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