A:AnswerThe maximum amount of footage that can be recorded or saved on a 512 GB microSD card depends on the device's video resolution settings. This Garmin FAQ provides the card capacites: https://bit.ly/36YC7zs
A:AnswerThere is no need for a professional install. The install is very simple . Clean the window, place metal disk to windshield, Connect camera to metal disk, plug camera to power.