... .Built-in low radiant and surge-proof power supply,super-low power consumption,super low heat.Wide range low ... Votgage:12v/220v optionalHigh integration of hardware circuit.Double power source hot standby,simple design of circuit,relibable performance. ... %90%Vooltage:DC 220VPower consumption:5wProducts information:4ports network extender,10m,300m transmissio distance,built-in power source,200v,UTP ...