Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4877126.

This is a simple panel designed to hold a HDD on one side and a Hikvision video recorder on the other. This can be helpful if you have no room to install the NVR in its original box. For example if you need to install the surveillance system in a sealed electrical box where it is protected from the weather/dust, and nobody can find it :) (We used it in a constructrion site after they broke the original casing)