4in1esc brain

I'm currently using the Turnigy Multistar 30A, and the wiring diagram shows that you connect the VTX and Camera to the 5 volt, yet no VTX even supports 5 volts, only 7-24V.

Hello, I'm looking for a 4in1 ESC 6S compatible, my motors at 100% throttle draw a maximum of 28A so I need at least 30A total, 40A would be better. I also need a 5V BEC for powering my Matek F405-OSD flight controller. what about these 2, I don't know these brands, are they reliable...

Hi Everybody, Does anyone have any experience with the 4 - 1 esc brains?" http://www.ebay.com/itm/271648206601 It wont be that specific one, but i was going to use two of them rather than 8 x esc for x8 config? My reasoning was to cut down on alot of wiring. I am exploring the idea of 18650...