Here it comes. An industrial USB hub with 7 ports. Takes from 7-24V at the input power supply. You can use or charge 6 gopros and the remote. Perfect for using on the road. Used it several times with a 12 V battery. Works great – don´t waste time thinking about the gopro accu´s.

Product name bought (ebay): EX-1177 HMV Rev.B

Hint: First plug in the main power supply, then step by step the 6 cameras and the remote. Otherwise the power-on-peak maybe too high.

I lost one USB hub doing it the wrong way (not this model).