VPN Router cooler box

I found that the VPN router provided by my employer had problems with overheating, even sitting in open air. To combat this I had a fan blowing at it, but wanted a better long term solution. This allows a simple 60mm PC fan to be used to cool the device. You can use this to store the device on it's side, or have the fan part stacked on top.

One of the nice parts is you can find 60mm 5v fans that have (or can be setup) with a USB end. Since most VPN devices have a USB port on them, they can power their own cooling.