WiFi-Texas WS-PS-24v60w 24 volt 60 watt power supply for PoE injectors 24v 2.5 amps UL and FCC approved. 24 volt 60 watt power supply for PoE injectors or switches needing 24v Use either as primary power, or use to add backup failover power Pair with one of our passive PoE injectors - see recommended products in the description below 2.1mm x 5.5mm DC barrel fits most devices For expert technical support from Austin Texas, please call 512 479 0317