Ok so this little guy is much smaller than the photo makes it look. It's essentially the camera control adapter but it also has a 3A BEC and LC Filter. It's specifically designed for people who are burning up some of these Nano FC boards by powering a VTX & camera, which are power hungry like the Unify, off of the 5v out on their FC. This is especially prone to happen when running the VTX at a high power output like 200mw and higher. With this you can take the load off of your little FC and rest assured that you have clean ample voltage to power your video systems.