1. Only compatible with Raspberry Pi 4B 2. ABS material shell and two transparent acrylic side panels 3. Using the RGB programmable LED on the screen driver board, you can adjust the color of the light according to your preference 4. Super heat dissipation, using 5mm copper tubes, 28 aluminum cooling fins and a 40mm cooling fan. The RGB LED on the fan will change with the LED on the driver board 5. It adopts a 0.96-inch OLED screen display, which is easy to assemble or disassemble, and can display system information such as the IP address of the Raspberry Pi, CPU temperature, memory status, and network card traffic through programming.