This case is for the Raspberry Pi 3 A+.
It contains two ports in the front where I put a USB splitter cable.
In the back is ports for HDMI, AUX and power supply.
To reach the sim-card you have to open the case.
The case is mounted together with snap fit.
The .stl models does not contain any S on the top.
The author marked this model as their own original creation.