This is a Framework mainboard case designed to take two 5015 blower fans to maximize performance.
Laptop mainboards often choke thermally due to the insufficient heatsink/fan. This remedies that by applying blowers directly to the CPU area. The two fans will pull an additional ~4W via USB; disconnect to save battery if you don't need the extra cooling.
Only necessary materials are two 5015 5v fans, male USB plug, and M2 hardware for securing the fans. The air intake slots in but glue may be used to seal it tight.
Optional but recommended: Place small heatsinks on top of the stock heatsink. Position them so that they sit below the air intakes for maximal cooling.
The author marked this model as their own original creation.