Review on TP-LINK TL-PoE160S, 802.3at/af Gigabit PoE Injector, Non-PoE to PoE Adapter, Power over Ethernet (PoE) Support, Plug & Play, Desktop/Wall-Mountable, Extended Range up to 328 ft., UL Certified, Black by James Stjames

This is exactly what I need to power the microphones on my 4 cameras that don't have built in audio (they have audio in and out). I also bought the microphones (VideoSecu High Sensitive Preamp Mini Audio Pickup Tiny Spy Microphone with Power Bypass for Security Audio Sound Voice Monitoring Recording and Bonus WD4 Warning Sticker) here at Revain and now I have great sound on all 4 cameras. My PoE (Power over Ethernet) Ethernet cable connects to TP-Link, which then splits into a regular Ethernet data port output and a selectable 6/9/12V DC output port. The handy included short Ethernet data cable connects the camera output. The power output is connected to the microphone via the supplied short power cord. The microphone then continues to supply power to the camera. Gigabit speed. It's nice when everything works the way you want it to. (Now I'll install the speakers of the camera and you're done. I hope the same TP-Link can also power the speakers.)