This is a multi-function cooling expansion board specifically designed for Raspberry Pi. It provides full compatibility with Raspberry Pi 4B/3B+/3B to protect the Raspberry Pi board

There is a large-size cooling fan on the board with strong wind power that can make Raspberry Pi run more stably by automatically adjusting its speed according to the CPU temperature. Three high-brightness RGB programming LEDs on the bottom of the expansion board can be used to display various lighting effects: waterfall lighting, breathing lights, rainbow lamp, and more.

This board can be directly plugged onto Raspberry Pi board via its 40 pin interfaces, and it has expanded 40 pin header for connecting to other devices without affecting the use of GPIO ports on Pi board. Furthermore, the place for the OLED screen is reserved on the board to display CPU temperature, CPU usage, hard disk space, memory, and IP address in real-time.

Specifications:

Support OLED display, can display the running status of Raspberry Pi in real-time.
The fan on the board can automatically adjust its speed according to the CPU temperature.
Perfectly compatible with Raspberry Pi 4B/3B+/3B, not occupy any Raspberry Pi pin or heat sink space.
Interface: directly plug into Raspberry Pi board IO ports
Dimension: 65*55*25mm/2.56*2.17*0.98”
Weight: 34.1g