Thanks for your help. I will try to send the module back

Ah sorry:
It's a Raspberry3 B
Raspbian GNU/Linux 8 (jessie)

Hi Folks I got a new Arducam Multi Camera Adapter Module (http://www.arducam.com/multi-camera-adapter-module-raspberry-pi/) and 2 RaspiCams v.2. But I have Problems to get the system running: mmal: mmal_vc_component_enable: failed to enable component: ENOSPC mmal: camera component couldn't be enable...