Each MV camera has 128GB of integrated, state of the art, industrial-grade storage. All video from the camera is recorded onto this storage.
There are two modes of recording, Standard Quality and Enhanced Quality. Standard Quality will capture continuous 720p video at 530 kbps/8 fps. This will allow video retention of 20 days. Enhanced Quality will capture continuous 720p video at 765 kbps/15fps. This will allow video retention of 14 days.
To select the quality setting, go to the Settings > Video and Retention from a camera details page.
When camera nears full capacity of the internal storage, it will start deleting the oldest video stored. To delete all video at once from the camera, simply remove the camera from its network. This can done by selecting a camera under Camera > Monitor > Cameras and clicking the move option.