A wall-mounted network rack. Another thing that I absolutely could have purchased, but this was cheaper and faster. This holds the network equipment in my family’s house - before, it was scattered sitting on top of boxes. Even a half-U rack would have been overkill, as we just needed something to keep them contained. On the left side, there’s a mount for a 120mm PC fan. It’s being driven at 5 instead of 12, but provides plenty of airflow to keep the gear cool.