Here a video gear that lets you capture virtual reality 360-degree videos with GoPro cameras. The Pro10HD Bullet360 holds your cameras in a spherical orientation and lets you simultaneously turn them on/off or stop/start recording. The Pro10HD Bullet360 has a modular design, allowing you to install cameras easily.
This tool has 10 sync control boards with input/output ports to daisy chain 10 cameras together. Videos you capture with this can be viewed using an Oculus Rift, Samsung Gear VR, and other VR headsets. Not cheap though.