This is the case for the 2.5.5 system. It's designed to keep your electronics safe while looking great at the same time!
The new enclosure is made of black translucent ABS plastic. It protects your electronics while allowing access to all pins and connectors. The inside of the enclosure is lined with ESD safe open cell foam to ensure the barometric pressure sensor is surrounded by static air and prevent unwanted readings due to airflow over the sensor. The screws that secure the enclosure have been moved to the top for ease of use.