Black Box 802.3af 10/100/1000 PoE Injector A 1-port, midspan injector that's 802.3af compatible for powered devices. Provides 15 W of safe Power over Ethernet (PoE) Plus power to each device. Supports Gigabit Ethernet data connections for high-speed equipment. Provides overvoltage and overcurrent overload protection as well as short circuit protection on the power output (per 802.3af specifications). Overtemperature protection. Shuts down automatically without being damaged.