WS-POE-12v12w Power Extender Power over Ethernet for Foscam, Wanscam 12 Volt Devices To 328 Feet with 1 Amps and 12 Watts PoE for 24 Volt Injectors 12 volt 1 amp 12 watt Power over Ethernet PoE up to 328ft via Ethernet cable - requires 24v injector or any 18v to 30v power source For Foscam, Airsight, Wanscam and other 12v devices 24v supply NOT included - see our Amazon store for kits with 24v power supplies for 1 to 12 cameras DC plug is 2.1mm (fits all 12v cameras) Adapters available for 2.5mm and 0.7mm Questions? Call our expert, USA-based Tech Support at 512 479 0317