It doesn't house the cable but offers a steel mounting platform, installs under the shingles which is now getting used by many installers to help make far more $$ for every set up without harming the customers roof. Hard disk retention isn't out there on models with a soldered disk https://docs.google.com/forms/d/e/1FAIpQLScnzxOoMLi_mVKDfID5ub3SyrgFipQyMy-aEGgORkc-xSZdNQ/viewform?usp=dialog