Instantly upgrade your network switch to PoE. Power an IP camera, desktop phone, WiFi access point, or other low voltage 802.3af device through a network data cable using this Passive Power over Ethernet (PoE) injector. A Passive PoE injector always delivers the same voltage as its power source. This injector provides 48 volts, 15 watts of PoE power for devices labeled “802.3af.”