This Raspberry case is made of ABS material. It can be perfectly compatible with Raspberry Pi 4B. Considering the high power consumption cost by Raspberry Pi 4B, the Raspberry case has room to add a fan (35x35x10mm) and general copper/aluminum heatsink (up to 6mm) for heat dissipation. What’s more? The case supports GPIO PINs of the Raspberry Pi 4B connect the external devices like Raspberry Pi Hat outside the case by cables. Also, the ventilation openings are designed on the top and bottom of the case to keep cooling.