Minor modification to the original cage body to be able to connect HDMI without disassembling the cage.
I used paint-on organic support (see screenshot) to gab the increased cutout.
This works for Raspberry Pi 3 and 4. However, since the Raspberry PI 3 used a standard sized HDMI connection, you want the use a thin one, otherwise it wont fit into the cutout.
Checkout https://www.printables.com/model/72311-well-cooled-double-rack-mount-for-raspberry-pis for more details.
The author remixed this model.
Extended the cutout to connect HDMI without disassembling