... 300m.Built-in low radiant and surge-proof power supply,super-low power consumption,super low heat.Wide range low voltage ... .Votgage:12v/220v optionalHigh integration of hardware circuit.Double power source hot standby,simple design of circuit,relibable performance.Compatible ... :4ports network extender,10m,300m transmissio distance,built-in power source,200v,UTP cat5e. Hot Sale Ethernet Extenders (up ...