I bought a used EVO II and I am not sure what the version is due to the number of models out its confusing. I'm assuming its an enterprise since I have the hard case, the video controller and all of the accessories (light, speaker, RTK). When I try and register on the FAA site it doesn't accept my SN and its asking for my remote ID SN and I dont know where to find that. Since I dont know the model its hard to tell. The SN starts with HD if that helps. It has the 6K camera on the gimbal. I was told its a V3